SN74SSTVF32852 - 具有 SSTL_2 输入和输出的 24 位至 48 位寄存缓冲器

SN74SSTVF32852是TI德州仪器公司的一款DDR寄存器产品，SN74SSTVF32852是具有 SSTL_2 输入和输出的 24 位至 48 位寄存缓冲器，本站介绍了SN74SSTVF32852的封装应用图解、特点和优点、功能等，并给出了与SN74SSTVF32852相关的TI元器件型号供参考。

SN74SSTVF32852 - 具有 SSTL_2 输入和输出的 24 位至 48 位寄存缓冲器 - DDR寄存器 - 存储器接口时钟和寄存器 - 德州仪器

产品描述

This 24-bit to 48-bit registered buffer is designed for 2.3-V to 2.7-V VCC operation.

All inputs are SSTL_2, except the LVCMOS reset (RESET)\ input. All outputs are edge-controlled circuits, optimized for unterminated DIMM loads, and meet SSTL_2 Class I specifications.

The SN74SSTVF32852 operates from a differential clock (CLK and CLK\). Data are registered at the crossing of CLK going high and CLK\ going low.

The device supports low-power standby operation. When RESET\ is low, the differential input receivers are disabled, and undriven (floating) data, clock, and reference voltage (VREF) inputs are allowed. In addition, when RESET\ is low, all registers are reset and all outputs are forced low. The LVCMOS RESET\ input always must be held at a valid logic high or low level.

To ensure defined outputs from the register before a stable clock has been supplied, RESET\ must be held in the low state during power up.

产品特性

Member of the Texas Instruments Widebus™ Family
Operates at 2.3 V to 2.7 V for PC1600, PC2100, and PC2700; 2.5 V to 2.7 V for PC3200
Pinout and Functionality Compatible With JEDEC Standard SSTV32852
Pinout Optimizes 1U DDR DIMM Layout
600 ps Faster (Simultaneous Switching) Than the JEDEC Standard SSTV32852 in PC2700 DIMM Applications
1-to-2 Outputs Support Stacked DDR DIMMs
One Device Per DIMM Required
Output Edge-Control Circuitry Minimizes Switching Noise in an Unterminated Line
Outputs Meet SSTL_2 Class I Specifications
Supports SSTL_2 Data Inputs
Differential Clock (CLK and CLK\) Inputs
Supports LVCMOS Switching Levels on the RESET\ Input
RESET\ Input Disables Differential Input Receivers, Resets All Registers, and Forces All Outputs Low
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

Widebus is a trademark of Texas Instruments.

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