ICSSSTV16857

Integrated Circuit Systems, Inc. ICSSSTV16857 DDR 14-Bit Registered Buffer Recommended Application: DDR Memory Modules Product Features: Differential clock signal Meets SSTL_2 signal data Supports SSTL_2 class I & II specifications low-voltage operation VDD = 2.3V to 2.7V 48 pin TSSOP package Pin Configuration Q1 Q2 GND VDDQ Q3 Q4 Q5 GND VDDQ Q6 Q7 VDDQ GND Q8 Q9 VDDQ GND Q10 Q11 Q12 VDDQ GND Q13 Q14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 D1 D2 GND VDD D3 D4 D5 D6 D7 CLK# CLK VDD GND VREF RESET# D8 D9 D10 D11 D12 VDD GND D13 D14 Truth Table1 Inputs RESET# L H H H CLK X or Floating ↑ ↑ L or H CLK# X or Floating ↓ ↓ L or H D X or Floating H L X Q Outputs Q L H L Q0(2) 48-Pin TSSOP & TVSOP 6.10 mm. Body, 0.50 mm. pitch = TSSOP 4.40 mm. Body, 0.40 mm. pitch = TSSOP (TVSOP) Notes: 1. H = High Signal Level L = Low Signal Level ↑ = Transition LOW-to-HIGH ↓ = Transition HIGH -to LOW X = Irrelevant Output level before the indicated steady state input conditions were established. 2. Block Diagram 38 39 34 48 35 R CLK D1 CLK CLK# RESET# D1 VREF ICSSSTV16857 1 Q1 To 13 Other Channels 16857 Rev D 07/09/01 Third party brands and names are the property of their respective owners. ICS reserves the right to make changes in the device data identified in this publication without further notice. ICS advises its customers to obtain the latest version of all device data to verif...