
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SMJ320MCM41D
SINGLE-SMJ320C40 MULTICHIP MODULE
SGKS002 – OCTOBER 1997
1
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
D Performance
– 40 MFLOPS (Million Floating-Point
Operations per Second) With
256-Megabyte / s Burst I/O Rate for
40-MHz Modules
– 128K Word
× 32 Bit Zero-Wait-State
SRAM Connected to the ’C40 Local Bus
D Compliant to MIL-PRF-38535 QML
D ’C40 Performance With Local Memory
Requiring Only 4.35 Square Inches of
Board Space
D Enhanced Performance Offered By
Multichip-Module Solution
– 46% Reduction In Number of
Interconnects
– 23% Reduction (Minimum) in Board Area
– Estimated 20% Reduction in Power
Dissipation Due to Reduced Parasitic
Capacitance and Interconnect Lengths
D Two Memory Ports for High Data
Bandwidth
– Full 2-Gigaword External Bus
– Internal Bus Mapped to 128K Word
×
32 Bit Zero-Wait-State SRAM
D Six External Communication Ports for
Direct Processor-to-Processor
Communication
D Supports IEEE-1149.1-Compliant (JTAG)
With Boundary-Scan Testing
D Operating Free-Air Temperature Ranges:
– Military: – 55
°C to 125°C
– Commercial: 0
°C to 70°C
D Packaging:
352-Lead Ceramic Quad Flatpack
(HFH Suffix)
description
The ’MCM41 single-SMJ320C40 multichip module (MCM) contains one SMJ320C40 device with 128K word
× 32 bit zero-wait-state SRAM mapped to the local memory bus. The MCM is footprint-compatible with the
monolithic ’320C40HFH package to allow easy upgradeability and design-in. The local memory bus is not
routed to the device footprint. The ’MCM41 is available in both a commercial temperature range (0
°C to 70°C)
and a military temperature range (– 55
°C to 125°C) option.
ADV
ANCE
INFORMA
TION
352-LEAD HFH QUAD FLATPACK PACKAGE
( TOP VIEW )
352
265
264
177
176
89
88
1
ADVANCE INFORMATION concerns new products in the sampling or
preproduction phase of development. Characteristic data and other
specifications are subject to change without notice.
Copyright
1997, Texas Instruments Incorporated
IEEE Standard 1149.1–1990, IEEE Standard Test-Access Port and Boundary-Scan Architecture
The ’MCM41 single-SMJ320C40 multichip module will be referred to as ’MCM41 throughout this data sheet.