Renesas HN27C101AFP12

Overview

HN27C101AFP12 from Hitachi (now Renesas) is a 131,072-word × 8-bit one-time programmable CMOS ROM in a 32-pin plastic SOP (FP-32D) package. It features 120 ns access time, +5 V ±10% single-supply operation, TTL-compatible I/O, and fast high-reliability page programming (14 sec typ) for embedded firmware storage in memory cards and portable devices.

For engineers reviewing the HN27C101AFP12 datasheet, HN27C101AFP12 pinout, HN27C101AFP12 application, or HN27C101AFP12 equivalent, this device serves as a non-volatile program storage solution requiring precise VPP = +12.5 V programming voltage, JEDEC-standard address/data bus interface, and strict sequencing of VCC/VPP power-up for reliable OTP programming.

Technical Context

The HN27C101AFP12 implements a 1024 × 1024 memory matrix with X- and Y-decoding, supporting read, program, verify, page latch, and device identifier modes via dedicated control pins (CE, OE, PGM) and voltage-level-sensitive inputs (A9, VPP). Its architecture requires VPP = +12.5 V ±0.3 V and VCC = +6.0 V ±0.25 V during programming, with strict timing constraints including tPW = 0.2 ms initial pulse width and tOPW up to 5.25 ms for overprogramming.

It operates across 0°C to +70°C, uses TTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.2 V), delivers VOH ≥ 2.4 V at –1 mA, and achieves VOL ≤ 0.45 V at 2.1 mA. Standby current is 1 mA typical with CE = VIH, and active ICC is ≤30 mA at 5 MHz.

Key Specifications

Pinout & Package

HN27C101AFP12 is housed in a 32-pin plastic SOP (FP-32D) package per JEDEC MS-012 standard, with 0.80 mm lead pitch, 14.14 mm body width, and 20.95 mm length.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar OTP ROM applications.

Compared with HN27C101AP-12 and HN27C101ATT-12, the HN27C101AFP12 offers the optimal balance of surface-mount compatibility, standard SOP handling in automated assembly, and proven reliability in memory card applications - making it the preferred choice for new SMT designs where board space and manufacturability are prioritized.

Availability

HN27C101AFP12 is available at Aetrix Electronics and suitable for memory card firmware storage, embedded boot ROM, and handheld diagnostic tool memory requiring stable component supply and long-term lifecycle support.

Supply support for HN27C101AFP12 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 Semiconductor (now part of Renesas Electronics) is a Japanese semiconductor manufacturer specializing in memory, microcontrollers, and analog ICs for industrial and consumer applications.

The HN27C101AFP12 belongs to Hitachi's OTP ROM product line designed for cost-sensitive, high-reliability firmware storage in portable and embedded systems where data immutability and long-term retention are critical.

FAQ

What is the programming voltage requirement for HN27C101AFP12?

HN27C101AFP12 requires a precise +12.5 V ±0.3 V programming voltage (VPP) applied to pin 1 during programming and verify operations. This voltage must be stable and applied simultaneously with or after VCC = +6.0 V ±0.25 V; exceeding 13.5 V risks reliability degradation. The HN27C101AFP12 does not support in-system programming and must be programmed before soldering.

Can HN27C101AFP12 be used as a direct replacement for HN27C101P-12?

Yes, HN27C101AFP12 is fully compatible with HN27C101P-12 in terms of pinout, timing, and electrical specifications, differing only in being electrically programmable versus mask-programmed. Both share identical FP-32D packaging and 120 ns access time. However, HN27C101AFP12 requires a programming step pre-deployment, whereas HN27C101P-12 arrives pre-programmed.

What is the maximum operating temperature range for HN27C101AFP12?

HN27C101AFP12 is rated for an operating temperature range of 0°C to +70°C, as specified in its absolute maximum ratings. It is not qualified for extended temperature operation (e.g., –40°C to +85°C), and performance outside this range is not guaranteed. For automotive or industrial environments requiring wider thermal margins, alternative solutions should be evaluated.

Does HN27C101AFP12 support page programming, and what is the typical time?

Yes, HN27C101AFP12 supports fast high-reliability page programming, completing full-device programming in 14 seconds typical. This mode latches a page of data before applying programming pulses, reducing total write time versus byte-by-byte programming while maintaining data retention integrity. The HN27C101AFP12 implements this via dedicated PGM and OE sequencing under VPP = +12.5 V.

How is the manufacturer and device code read from HN27C101AFP12?

The HN27C101AFP12 supports device identifier mode: apply VH = +12.0 V ±0.5 V to A9 (pin 26) and set A0 (pin 12) to VIL for manufacturer code (07h) or VIH for device code (38h), with CE = OE = VIL and PGM = VIH. Outputs I/O0–I/O7 then present the 8-bit hex code, enabling automatic recognition by programming equipment - a feature confirmed in the HN27C101AFP12 datasheet section "Mode Description".