SSTL16857

INTEGRATED CIRCUITS www.DataSheet.co.kr SSTL16857 14-bit SSTL_2 registered driver with differential clock inputs Product specification Supersedes data of 1999 Apr 29 1999 Sep 30 Philips Semiconductors Datasheet pdf - http://www.DataSheet4U.net/ Philips Semiconductors Product specification 14-bit SSTL_2 registered driver with differential clock inputs SSTL16857 FEATURES Stub-series terminated logic for 2.5V VDDQ (SSTL_2) Optimized for DDR (Double Data Rate) SDRAM applications Supports SSTL_2 signal inputs and outputs Flow-through architecture optimizes PCB layout Meets SSTL_2 class I and class II specifications Latch-up protection exceeds 500mA per JEDEC Std 17 ESD protection exceeds 2000 V per MIL STD 833 Method 3015 and 200 V per Machine Model PIN CONFIGURATION Q1 Q2 GND VDDQ Q3 Q4 Q5 GND VDDQ 1 2 3 4 5 6 7 8 9 48 D1 47 D2 46 GND 45 VCC 44 D3 43 D4 42 D5 41 D6 40 D7 39 CLK– 38 CLK+ 37 VCC 36 GND 35 VREF 34 RESET 33 D8 32 D9 31 D10 30 D11 29 D12 28 VCC 27 GND 26 D13 25 D14 Full DDR solution provided when used with PCK857 and CBT3857 DESCRIPTION The SSTL16857 is a 14-bit SSTL_2 registered driver with differential clock inputs. Both VCC and VDDQ support 2.5V and 3.3V operation however. VDDQ must not exceed VCC. Inputs are SSTL_2 type with VREF normally at 0.5*VDDQ. The outputs support class I which can be used for standard stub-series applications or capacitive loads. Master reset (RESET) asynchronously resets all registers to zero. The SSTL16857 is i...