My Inquiry
My Account
Renesas CD22M3494EZR5276
- Part No.:
- CD22M3494EZR5276
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 40-DIP (0.600", 15.24mm)
- Datasheet:
-
CD22M3494EZR5276.pdf
- Description:
- IC CROSSPOINT SW 1 X 16:8 40DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,316
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CD22M3494EZR5276 from Intersil is a 16 × 8 × 1 BiMOS-E analog crosspoint switch IC with 128 independently controllable transmission gates, operating from 4V to 15V supply, supporting DC–50MHz signal bandwidth and featuring 36Ω typical ON resistance at 12V, used in PBX systems and video switching networks.
For engineers reviewing the CD22M3494EZR5276 datasheet, CD22M3494EZR5276 pinout, CD22M3494EZR5276 application, or CD22M3494EZR5276 equivalent, this device requires attention to dual supply rails (VDD/VSS/VEE), parallel address decoding (AX0–AX3 + AY0–AY2), strobe-synchronized switching, and cascading via CS for matrix expansion beyond 16×8.
Technical Context
The CD22M3494EZR5276 integrates a 7-to-128 line decoder driving a 16×8 analog switch array, where each switch is individually addressed by four X-address (AX0–AX3) and three Y-address (AY0–AY2) inputs. Switch state is latched on the rising edge of STROBE with DATA determining open/closed state.
It supports full-rail analog input swing (VEE to VDD), uses separate digital (VSS) and analog (VEE) negative supplies, and enables chip-level reset (RESET) and cascade expansion (CS). Timing requires 10ns minimum setup/hold for ADDRESS, DATA, and STROBE relative to each other.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Count | 128 independent analog crosspoints (16 rows × 8 columns) |
| ON Resistance (rON) | 36Ω typical at VDD = 12V, TA = +25°C - ensures low insertion loss in signal paths |
| rON Matching (ΔrON) | ≤10Ω max across temperature - critical for channel-to-channel gain consistency |
| Bandwidth (–3dB) | 50MHz at CL = 3pF, RL = 75Ω - supports composite video and fast digital signals |
| Supply Range | 4V to 15V (VDD), VSS = 0V, VEE = 0V - enables operation from single +5V up to +15V systems |
| Input Voltage Range | VEE to VDD - allows rail-to-rail analog signal handling without clamping |
| Feedthrough (OFF) | –95dB at 1kHz - minimizes crosstalk between inactive channels |
| Propagation Delay | 5–30ns (switch ON), 50–100ns (control-to-output) - supports high-speed multiplexing |
Pinout & Package
CD22M3494EZR5276 is packaged in a 40-lead PDIP (Plastic Dual-In-Line Package), Pb-free per RoHS, with 0.600" body width and standard through-hole mounting. Pin 1 is marked by notch or dot; pin numbering follows counter-clockwise convention from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 40) | Positive Supply | Main power rail for analog/digital circuitry; must be decoupled locally |
| VSS (Pin 16) | Digital Ground | Reference for logic inputs (AX, AY, DATA, STROBE, RESET, CS) |
| VEE (Pin 20) | Analog Ground | Reference for analog I/O (X0–X15, Y0–Y7); separation reduces noise coupling |
| AX0–AX3 (Pins 5,22,23,4) | X-Axis Address Inputs | Select one of 16 row lines (X0–X15); decoded internally to drive row drivers |
| AY0–AY2 (Pins 24,25,2) | Y-Axis Address Inputs | Select one of 8 column lines (Y0–Y7); combined with AX to target specific crosspoint |
| DATA (Pin 38) | Switch State Control | High = close selected switch; low = open; sampled on STROBE rising edge |
| STROBE (Pin 18) | Address Latch Enable | Rising edge latches AX/AY/DATA; must be stable before edge with 10ns setup |
| RESET (Pin 3) | Global Switch Reset | Pulse high to open all 128 switches simultaneously; asynchronous, active-high |
| CS (Pin 36) | Chip Select | High enables device; allows multiple CD22M3494EZR5276 units to share address/data bus |
| X0–X15 (Pins 33–28,8–13,27,26,6,7) | Analog Row I/O | 16 bidirectional analog/digital signal lines; connect to system row traces |
| Y0–Y7 (Pins 35,37,39,1,21,19,17,15) | Analog Column I/O | 8 bidirectional analog/digital signal lines; connect to system column traces |
Key Features
| Feature | Design Value |
|---|---|
| 128 independently addressable analog switches | Enables flexible routing in PBX, test instrumentation, and video matrix applications without external decoding logic |
| Guaranteed rON matching ≤10Ω | Ensures uniform gain and minimal differential distortion across all 128 paths in multi-channel systems |
| Rail-to-rail analog input range (VEE to VDD) | Eliminates need for level-shifting circuitry when interfacing with ±5V, ±12V, or single-supply op-amps |
| Low 0.3pF typical feedthrough capacitance | Reduces unwanted coupling between OFF-state channels - critical for high-isolation video/audio routing |
| Chip select (CS) for cascading | Permits building larger matrices (e.g., 32×8 or 16×16) using multiple CD22M3494EZR5276 devices on shared address bus |
| Pb-free (RoHS-compliant) PDIP package | Supports wave solder assembly; compatible with legacy through-hole manufacturing infrastructure |
Applications
| Telecom PBX Switching | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Routing voice channels between subscriber lines and trunk interfaces in digital private branch exchange systems. IC Role / Device Role / Timing Role: Configurable analog crosspoint switch providing non-blocking 16×8 interconnection under microcontroller control. Use Value: Enables dynamic reconfiguration of call paths with <30ns switching and <–95dB OFF isolation, minimizing crosstalk between active calls. |
Use Scenario: Signal path selection in automated test fixtures for DUT stimulus/response routing across multiple pins. IC Role / Device Role / Timing Role: High-fidelity analog multiplexer delivering sub-1% gain error and matched ON resistance across 128 paths. Use Value: Supports simultaneous multi-point measurement with consistent channel characteristics, reducing calibration overhead in production test systems. |
| Composite Video Matrix | Medical Instrumentation Multiplexing |
Use Scenario: Switching NTSC/PAL video sources (cameras, recorders) to monitors or recording devices in security or broadcast systems. IC Role / Device Role / Timing Role: Wideband analog switch maintaining signal integrity up to 50MHz with <0.01% THD at 1kHz. Use Value: Preserves luminance/chrominance timing and amplitude fidelity without added jitter or phase shift in real-time video distribution. |
Use Scenario: Channel selection for multi-lead ECG or EEG front-end amplifiers feeding ADCs in portable diagnostic equipment. IC Role / Device Role / Timing Role: Low-leakage (<±10µA), low-ON-resistance analog switch isolating patient-connected electrodes during idle cycles. Use Value: Ensures patient safety compliance (IEC 60601) and prevents signal corruption from leakage currents or channel crosstalk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog crosspoint switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MT8816ACW | Same 16×8 architecture, but requires external latch; higher rON (60Ω typ @ 12V); no integrated 7-to-128 decoder | Requires additional logic for address latching; less suitable for space-constrained PCBs | Choose if legacy MT8816 footprint compatibility is mandatory and board area permits extra components |
| M3494B | Functionally identical pinout and timing; same BiMOS-E process; identical rON and bandwidth specs; SGS-marked variant | No functional deviation - direct second-source for CD22M3494EZR5276 in PDIP package | Preferred for supply chain diversification without design change or qualification rework |
Compared with MT8816ACW and M3494B, the CD22M3494EZR5276 offers integrated decoding and lower typical ON resistance, while M3494B provides seamless drop-in replacement capability and MT8816ACW suits designs already committed to external latch architecture.
Availability
CD22M3494EZR5276 is available at Aetrix Electronics and suitable for telecom infrastructure, automated test equipment, video distribution systems, and medical instrumentation requiring stable component supply over extended product lifecycles.
Supply support for CD22M3494EZR5276 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
Intersil Corporation (now part of Renesas Electronics) is a U.S.-based semiconductor company specializing in precision analog, power management, and interface ICs for industrial, aerospace, and communications markets.
The CD22M3494EZR5276 belongs to Intersil's BiMOS-E analog switch family, designed specifically for high-reliability, wide-bandwidth signal routing in mission-critical telecom and instrumentation systems.
FAQ
What is the maximum operating voltage for CD22M3494EZR5276?
The CD22M3494EZR5276 supports a VDD supply range of 4V to 15V, with absolute maximum rating of –0.5V to 16V referenced to VEE. Operation above 15V is not guaranteed and may cause permanent damage. For reliable long-term performance, maintain VDD within 4–15V and ensure VSS = 0V and VEE = 0V as specified in the datasheet.
Does CD22M3494EZR5276 require separate analog and digital ground planes?
Yes, CD22M3494EZR5276 uses three distinct supply pins: VDD (positive), VSS (digital ground), and VEE (analog ground). While VSS and VEE are both at 0V in most implementations, they serve different internal domains - VSS references logic inputs, VEE references analog I/O. Separating their return paths on PCB minimizes digital noise coupling into analog signal paths.
How is switching synchronized in CD22M3494EZR5276?
Switching in CD22M3494EZR5276 is synchronized to the rising edge of the STROBE input. The AX, AY, and DATA inputs must be stable for ≥10ns before STROBE rises (tAS, tDS setup times), and remain stable for ≥10ns after (tAH, tDH hold times). Only then does the addressed crosspoint update to the DATA state - ensuring deterministic, glitch-free switching.
Can CD22M3494EZR5276 handle bipolar analog signals?
Yes - CD22M3494EZR5276 supports analog input voltages from VEE to VDD. With VEE = –5V and VDD = +5V, it passes ±5V signals unattenuated. This rail-to-rail capability is enabled by its BiMOS-E process and dual-supply architecture, making it suitable for AC-coupled audio, sensor interfaces, and industrial control signals.
Is CD22M3494EZR5276 pin-compatible with MT8816?
CD22M3494EZR5276 is functionally compatible and pin-compatible with MT8816 in the 40-pin PDIP package, as confirmed in the datasheet Features section. Both share identical pin assignments for X0–X15, Y0–Y7, AX0–AX3, AY0–AY2, DATA, STROBE, RESET, CS, VDD, VSS, and VEE - enabling direct substitution without PCB modification.
CD22M3494EZR5276 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-DIP (0.600", 15.24mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Crosspoint Switch
- Circuit:
- 1 x 16:8
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Analog and Digital
- Voltage - Supply:
- 4V ~ 15V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 40-PDIP
CD22M3494EZR5276 FAQ
1.How can I place an order for CD22M3494EZR5276 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD22M3494EZR5276 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 CD22M3494EZR5276 reliable?
The price and inventory of CD22M3494EZR5276 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD22M3494EZR5276 is usually 5 days.
3.What payment methods are accepted for CD22M3494EZR5276?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD22M3494EZR5276 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD22M3494EZR5276?
CD22M3494EZR5276 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD22M3494EZR5276 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 CD22M3494EZR5276?
For technical support, including CD22M3494EZR5276 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD22M3494EZR5276 requirements.
6.How does Aetrix verify that CD22M3494EZR5276 is sourced from the original manufacturer or authorized distributors?
All CD22M3494EZR5276 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 CD22M3494EZR5276 meets industry standards.
7.What is the process for return or replacement of CD22M3494EZR5276?
All CD22M3494EZR5276 units undergo pre-shipment inspection (PSI). If there is an issue with CD22M3494EZR5276, 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 CD22M3494EZR5276 part is unused and in its original packaging.
Return procedure for CD22M3494EZR5276:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CD22M3494EZR5276 Tags
-
SN74HC138DR
Texas Instruments
-
TC7SB3157CFU,LF(CT
Toshiba Semiconductor and Storage
-
74CBTLV3257PW,118
Nexperia USA Inc.
-
SN74CBTLV3257PWR
Texas Instruments
-
74CBTLV3257GUX
Nexperia USA Inc.
-
74HC154BQ,118
Nexperia USA Inc.
-
P3S0200GMX
NXP USA Inc.
-
SN74CB3Q3245PWR
Texas Instruments
-
SN74CB3Q3257RGYR
Texas Instruments
-
TCA9543APWR
Texas Instruments
-
TCA9546APWR
Texas Instruments
-
SN74HC138N
Texas Instruments
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…
