ICS9179BF-01T IDT, Integrated Device Technology Inc, ICS9179BF-01T Datasheet
ICS9179BF-01T
Specifications of ICS9179BF-01T
Related parts for ICS9179BF-01T
ICS9179BF-01T Summary of contents
Page 1
Integrated Circuit Systems, Inc. Low Skew Buffers General Description The ICS9179B-01 generates SDRAM clock buffers required for high speed RISC or CISC microprocessor systems such as Intel PentiumPro or Pentium II. An output enable is provided for testability. The device ...
Page 2
ICS9179B-01 Pin Descriptions PIN NUMBER PIN NAME SDRAM (0:3) 13, 14, 17, 18 SDRAM (4:7) 31, 32, 35, 36 SDRAM (8:11) 40, 41, 44, 45 SDRAM (12:15) 21, 28 SDRAM (16:17) 11 BUF_IN ...
Page 3
Technical Pin Function Descriptions VDD This is the power supply to the internal core logic of the device as well as the clock output buffers for SDRAM(0:17). This pin operates at 3.3V volts. Clocks from the listed buffers that it ...
Page 4
ICS9179B-01 2 General I C serial interface information A. For the clock generator to be addressed sequence, with an acknowledge bit between each byte. B. The clock generator is a slave/receiver I in the latches for verification. ...
Page 5
Functionality Byte 1: SDRAM Clock Register BIT PIN# PWD DESCRIPTION BIT PIN# PWD DESCRIPTION Max 3.3V supply consumption SDRAM15 OE# SDRAM (0:3) SDRAM (4:7) Bit SDRAM17 Max discrete cap loads (Act/Inact) Bit Condition (Act/Inact) ...
Page 6
ICS9179B-01 Absolute Maximum Ratings Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . 7.0 V Logic Inputs . . . . . . . ...
Page 7
Electrical Characteristics - SDRAM 70C 3.3 V +/-5 DDL PARAMETER SYMBOL Output Impedance R DSP Output Impedance R DSN Output High Voltage V OH Output Low Voltage V OL ...
Page 8
ICS9179B-01 General Layout Precautions: 1) Use a ground plane on the top layer of the PCB in all areas not used by traces. 2) Make all power traces and vias as wide as possible to lower inductance. Notes: 1 All ...
Page 9
SYMBOL COMMON DIMENSIONS MIN. A .095 A1 .008 A2 .088 B .008 C .005 D See Variations E .292 e H .400 h .010 L .024 N See Variations µ 0° X .085 Ordering Information 9179BF-01LF Example: XXXX F - ...
Page 10
ICS9179B-01 10 ...