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SN74ACT7881-20FN from TI,Texas Instruments

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SN74ACT7881-20FN

Manufacturer: TI, TEXAS

1024 x 18 synchronous FIFO memory
Partnumber Manufacturer Quantity Availability
SN74ACT7881-20FN,SN74ACT788120FN TI, TEXAS 31 In Stock

Description and Introduction

1024 x 18 synchronous FIFO memory The SN74ACT7881-20FN is a high-performance, 20-bit bus interface latch manufactured by Texas Instruments.  

### **Specifications:**  
- **Logic Type:** 20-Bit Transparent Latch  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **High-Speed Operation:** Compatible with ACT logic family  
- **Output Drive Capability:** 24mA  
- **Package Type:** 44-Pin PLCC (Plastic Leaded Chip Carrier)  
- **Propagation Delay:** Typically 6.5ns (max)  
- **Input/Output Compatibility:** TTL and CMOS  

### **Descriptions & Features:**  
- **Transparent Latch Function:** Data passes through when the latch enable (LE) is high; latched when LE is low.  
- **3-State Outputs:** Allows for bus-oriented applications.  
- **High Noise Immunity:** Characteristic of the ACT logic family.  
- **Low Power Consumption:** Optimized for high-speed, low-power operation.  
- **Bus Hold on Data Inputs:** Eliminates the need for external pull-up/pull-down resistors.  

This device is commonly used in high-speed data buffering and bus interface applications.  

Would you like additional details on pin configurations or application notes?

Application Scenarios & Design Considerations

1024 x 18 synchronous FIFO memory

Alternative Part Number

  • CY7C433-20JC --: 20 ns synchronous FIFO in a PLCC package with comparable depth and width, a common drop-in functional substitute for the 74ACT7881.
  • IDT7204L20J --: 4K x 9 asynchronous FIFO rated at 20 ns, widely used as an alternative FIFO family when the ACT7881 is unavailable.
  • SN74ACT7808-20FN --: Same ACT FIFO family with matching 20 ns speed and PLCC footprint, offering similar timing and interface behavior.
  • CY7C4255V-15AXC --: Synchronous FIFO in the same 68-pin PLCC form factor with comparable 20 ns-class speed and depth, suitable as a functional drop-in for the ACT7881 FIFO.
  • IDT72V2101L10PF --: High-speed 3.3V synchronous FIFO with similar organization and timing, widely used as a second-source replacement for ACT-series FIFOs.
  • SN74V283-10PQ --: TI's own next-generation synchronous FIFO family offering equivalent functionality and speed grade, easing board-level qualification.

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