My Inquiry
My Account
Renesas HN27C101AG-10
- Part No.:
- HN27C101AG-10
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-CDIP (0.600", 15.24mm) Window
- Datasheet:
-
HN27C101AG-10.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:12,714
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HN27C101AG-10 from Hitachi is a 1-Mbit (131,072 × 8-bit) UV-erasable CMOS EPROM with 100 ns access time, +5 V ± 5% supply, and 32-pin cerdip package featuring a transparent quartz window for ultraviolet erasure. It serves as nonvolatile program storage in legacy microcontroller systems, boot ROMs, and firmware modules requiring field-reprogrammability via UV exposure and electrical programming.
For engineers reviewing the HN27C101AG-10 datasheet, HN27C101AG-10 pinout, HN27C101AG-10 application, or HN27C101AG-10 equivalent, key selection criteria include TTL-compatible I/O timing, fast high-reliability page programming (14 sec typ), 12.5 V VPP programming voltage, and JEDEC-standard 32-pin DIP footprint compatibility with mask ROM replacements.
Technical Context
The HN27C101AG-10 implements a 1024 × 1024 memory matrix with X- and Y-decoding, supporting full address range A0–A16 and bidirectional data I/O0–I/O7. Its dual-mode operation includes standard read mode (VPP = VCC) and programming mode (VPP = 12.5 V, VCC = 6.0 V), with dedicated PGM and OE controls enabling page latch and verify cycles.
It features device identifier mode using A9 and A0 with 12 V threshold (VH) to output manufacturer code 07h and device code 38h on I/O7–I/O0, allowing automatic algorithm selection in compatible programmers. Erasure requires ≥15 W·sec/cm² UV dose at 2537 Å, resetting all bits to logic '1'.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory capacity | 131,072 words × 8 bits = 1 Mbit nonvolatile storage |
| Access time | 100 ns max - enables direct interface with 10 MHz Z80/8085/68000-class CPUs without wait states |
| Supply voltage | +5 V ± 5% - matches standard TTL logic rails and eliminates need for auxiliary regulators |
| Programming voltage | +12.5 V DC - required for reliable Fowler-Nordheim tunneling during write/verify cycles |
| Package | 600-mil 32-pin cerdip (DG-32) with UV-transparent lid - supports field erasure and PCB-level replacement of mask ROMs |
| Standby current | 5 µW typ - enables low-power retention in battery-backed or intermittent-use systems |
| Input/output compatibility | TTL-compatible levels and loading - interoperates directly with 74LS/74ALS logic and microprocessor buses |
Pinout & Package
HN27C101AG-10 is housed in a hermetically sealed 600-mil 32-pin ceramic dual-in-line package (cerdip, DG-32) with UV-transparent quartz window. Pin layout conforms to JEDEC MS-011 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 32) | Power supply | +5 V ± 5% main supply for read mode; +6 V ± 0.25 V during programming |
| VSS (Pin 16) | Ground | Reference return for all digital and programming circuits |
| VPP (Pin 1) | Programming power | +12.5 V ± 0.3 V input required only during programming/verify; must be applied after VCC |
| CE (Pin 22) | Chip enable | Active-low global select; disables outputs and reduces current when high |
| OE (Pin 24) | Output enable | Active-low control for tri-state output drivers; used for bus sharing |
| PGM (Pin 31) | Programming enable | Active-low signal initiating programming or verify cycle; must be synchronized with VPP |
| A0–A16 (Pins 12,26,25,24,7–3,21,20,19,18,17,15,14,13,30,29,27,23) | Address inputs | 17-bit address bus supporting full 131,072-word addressing; A9 used for device ID mode |
| I/O0–I/O7 (Pins 13–15,17–21) | Data I/O | Bidirectional 8-bit data bus; outputs valid during read/verify, inputs latched during programming |
Key Features
| Feature | Design Value |
|---|---|
| Fast high-reliability page programming | 14 sec typical - reduces firmware update time vs. byte-by-byte methods while maintaining data retention >10 years |
| Device identifier mode | Manufacturer code 07h and device code 38h output on I/O7–I/O0 - enables auto-detection in universal EPROM programmers |
| UV erasability | Full array reset to '1's after ≥15 W·sec/cm² 2537 Å UV exposure - supports unlimited reprogramming cycles |
| Low active power dissipation | 50 mW/MHz typical - minimizes thermal load in dense PCB layouts and fanless enclosures |
| JEDEC 32-pin DIP footprint | Direct replacement for HN27C101G and mask ROMs - no PCB redesign needed for legacy system upgrades |
Applications
| Industrial Control Firmware Storage | Legacy Microcomputer Boot ROM |
|---|---|
Use Scenario: Storing fixed ladder logic and I/O mapping tables in programmable logic controllers (PLCs) deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile boot-time instruction storage accessed by Z80 or 8051 derivatives at power-up; 100 ns access ensures deterministic startup timing. Use Value: UV erasability allows field updates of control algorithms without replacing PCBs; TTL compatibility eliminates level-shifting components. | Use Scenario: Providing initial bootstrap code for vintage 8-bit computer systems such as CP/M workstations or embedded terminals. IC Role / Device Role / Timing Role: Primary ROM holding BIOS and hardware initialization routines; CE/OE timing aligns with 4 MHz CPU bus cycles. Use Value: Cerdip packaging ensures long-term reliability in uncontrolled ambient conditions; 5 µW standby current extends battery backup life. |
| Medical Instrument Configuration Memory | Test Equipment Calibration Data Storage |
Use Scenario: Holding calibration coefficients and safety-critical operational parameters in portable ECG or infusion pump devices. IC Role / Device Role / Timing Role: Read-only configuration store accessed during self-test sequence; device ID mode verifies correct firmware version before activation. Use Value: Manufacturer/device code verification prevents accidental execution of mismatched firmware; 12.5 V programming enables secure in-factory personalization. | Use Scenario: Archiving instrument-specific correction factors and measurement offset tables in benchtop oscilloscopes and multimeters. IC Role / Device Role / Timing Role: Static data repository queried during power-on self-test; page programming supports batch calibration updates during manufacturing. Use Value: Fast 14 sec page programming accelerates production line calibration; cerdip hermetic seal protects against humidity-induced bit corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM27C101-10 | Same 1-Mbit × 8, 100 ns, +5 V ± 5%, 32-pin cerdip; requires 21 V VPP for programming | Higher programming voltage increases stress on programmer circuitry; identical UV erasure and pinout | Select when existing AMI-based programming infrastructure is in place and 21 V VPP is available |
| MX27C1001-10 | 1-Mbit × 8, 100 ns, +5 V ± 5%, 32-pin cerdip; 12.5 V VPP, but no device ID mode or page programming support | Lacks A9-based identifier and fast page programming - limits auto-programmer compatibility and update speed | Select for cost-sensitive applications where single-byte programming suffices and programmer intelligence is not required |
Compared with AM27C1001-10 and MX27C1001-10, the HN27C101AG-10 uniquely combines 12.5 V programming, device ID mode, and 14 sec page programming - delivering faster field updates, safer firmware validation, and seamless integration into automated programming workflows.
Availability
HN27C101AG-10 is available at Aetrix Electronics and suitable for industrial control firmware storage, legacy microcomputer boot ROMs, and medical instrument configuration memory requiring stable component supply across extended product lifecycles.
Supply support for HN27C101AG-10 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Hitachi Ltd. (now Renesas Electronics Corporation) was a Japanese multinational conglomerate specializing in semiconductor memory, microcontrollers, and industrial electronics before its semiconductor division merged into Renesas in 2003.
The HN27C101AG series belongs to Hitachi's EPROM product line designed specifically for high-reliability, field-upgradable firmware storage in industrial, medical, and test equipment where long-term data retention and UV-based reusability are critical.
FAQ
What is the programming voltage requirement for HN27C101AG-10?
HN27C101AG-10 requires +12.5 V ± 0.3 V on VPP (Pin 1) during programming and verify operations, with VCC simultaneously set to +6.0 V ± 0.25 V. VPP must be applied after VCC and removed before VCC to prevent device stress. This precise voltage enables Fowler-Nordheim injection while maintaining >10-year data retention. The HN27C101AG-10 does not operate correctly with alternative VPP values such as 21 V used by some competing EPROMs.
How does the device identifier mode function on HN27C101AG-10?
The device identifier mode on HN27C101AG-10 activates when A0 = VIL and A9 = VH (12.0 V ± 0.5 V), causing I/O7–I/O0 to output hex 07h (manufacturer code) followed by 38h (device code). This mode enables automatic recognition by universal EPROM programmers, ensuring correct algorithm selection. The HN27C101AG-10 uses this feature to distinguish itself from the HN27C301AG series (code B9h) and avoid misprogramming.
What UV exposure is required to erase HN27C101AG-10?
HN27C101AG-10 requires a minimum integrated UV dose of 15 W·sec/cm² at 2537 Å wavelength for complete erasure - typically achieved in 15–20 minutes using commercial EPROM erasers. Erasure resets all memory cells to logic '1'. The HN27C101AG-10 cerdip package includes a quartz window aligned to the die, and exposure must occur with the window unobstructed and the device oriented per manufacturer guidelines to ensure uniform dosage.
Can HN27C101AG-10 replace mask ROMs in existing designs?
Yes, HN27C101AG-10 is pin-compatible with many 32-pin 1-Mbit mask ROMs due to its JEDEC-standard DG-32 cerdip footprint and TTL-compatible I/O. Its CE/OE timing and 100 ns access match common mask ROM specifications, allowing drop-in replacement without PCB changes. The HN27C101AG-10 adds field-upgradability via UV erasure and electrical programming - a key advantage over one-time-programmable mask ROMs.
What is the difference between standard programming and page programming on HN27C101AG-10?
Standard programming writes one byte per cycle, while page programming loads up to 256 bytes into an internal latch before executing a single high-reliability write sequence - reducing total programming time to ~14 seconds for the full 1-Mbit array. Both modes use the same 12.5 V VPP and require verify steps, but page programming on HN27C101AG-10 minimizes VPP switching cycles and thermal stress. The HN27C101AG-10 implements this via dedicated PGM and OE timing sequences defined in its AC characteristics table.
HN27C101AG-10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-CDIP (0.600", 15.24mm) Window
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EPROM
- Technology:
- EPROM - UV
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 100 ns
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 32-CDIP
HN27C101AG-10 FAQ
1.How can I place an order for HN27C101AG-10 through Aetrix?
Please submit a Request for Quotation (RFQ) for HN27C101AG-10 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HN27C101AG-10 reliable?
The price and inventory of HN27C101AG-10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HN27C101AG-10 is usually 5 days.
3.What payment methods are accepted for HN27C101AG-10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HN27C101AG-10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HN27C101AG-10?
HN27C101AG-10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HN27C101AG-10 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HN27C101AG-10?
For technical support, including HN27C101AG-10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HN27C101AG-10 requirements.
6.How does Aetrix verify that HN27C101AG-10 is sourced from the original manufacturer or authorized distributors?
All HN27C101AG-10 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HN27C101AG-10 meets industry standards.
7.What is the process for return or replacement of HN27C101AG-10?
All HN27C101AG-10 units undergo pre-shipment inspection (PSI). If there is an issue with HN27C101AG-10, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HN27C101AG-10 part is unused and in its original packaging.
Return procedure for HN27C101AG-10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HN27C101AG-10 Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
