PUMA2S4000A-20 Advanced Packaging Technology Of America, PUMA2S4000A-20 Datasheet

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PUMA2S4000A-20

Manufacturer Part Number
PUMA2S4000A-20
Description
SRAM, The PUMA S4000 is a 4 Mbit SRAM module, user configurable as 128K x 32, 256K x 16 or 512K x 8
Manufacturer
Advanced Packaging Technology Of America
Datasheet
1.PUMA2S4000A-20.pdf (10 pages)
Elm Road, West Chirton, North Shields, Tyne & Wear
NE29 8SE, England Tel. +44 (0191) 2930500 Fax. +44 (0191) 2590997
Description
Gullwing (PUMA 77) footprints. The PUMA **S4000
is a 4 Mbit SRAM module, user configurable as
128K x 32, 256K x 16 or 512K x 8. The device is
available with fast access times of 20, 25 and
35ns. The device may be screened in accordance
with MIL-STD-883C.
Available in PGA (PUMA 2), JLCC (PUMA 67) and
Block Diagram
PUMA 2S4000, 67S4000A/B and 77S4000A/B
A0~A16
D16~23
D24~31
D8~15
D0~7
WE4
WE3
WE2
WE1
CS2
CS3
CS1
CS4
OE
128Kx8
SRAM
A0~A16
CS1~4
OE
GND
128Kx8
SRAM
Address Input
Chip Select
Output Enable
Ground
128Kx8
SRAM
128Kx8
SRAM
Pin Functions
Features
• 4 Megabit SRAM module.
• Fast Access Times of 20/25/35 ns.
• Output Configurable as 32 / 16 / 8 bit wide.
• Upgradeable footprint.
• Operating Power 3740 / 2310 / 1595 mW (Max).Low
• TTL Compatible Inputs and Outputs.
• May be screened in accordance with MIL-STD-883.
• PUMA 2 - 66 pin ceramic PGA.
• PUMA 67 - 68 pin ceramic JLCC.
• PUMA 77 - 68 pin ceramic Gullwing.
Power Standby (L version) 220 mW (Max).
Block Diagram
PUMA 67S4000 and 77S4000
A0-A16
D16-23
D24-31
D8-15
D0-7
CS1
CS2
CS3
CS4
WE
OE
PUMA2S4000 -20/25/35
PUMA 67S4000/A/B-20/25/35
PUMA 77S4000/A/B-20/25/35
128K x 32 SRAM Module
D0~D31
WE1~4
Vcc
128Kx8
SRAM
Issue 4.5 : August 2002
128Kx8
Data Inputs/Outputs
Write Enables
Power (+5V)
SRAM
128Kx8
SRAM
128Kx8
SRAM

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PUMA2S4000A-20 Summary of contents

Page 1

Elm Road, West Chirton, North Shields, Tyne & Wear NE29 8SE, England Tel. +44 (0191) 2930500 Fax. +44 (0191) 2590997 Description Available in PGA (PUMA 2), JLCC (PUMA 67) and Gullwing (PUMA 77) footprints. The PUMA **S4000 ...

Page 2

PUMA 2/67/77S4000/A/B - 20/25/35 DC OPERATING CONDITIONS (1) Absolute Maximum Ratings Voltage on any pin relative to GND Power Dissipation Storage Temperature Notes (1) Stresses above those listed may cause permanent damage. This is a stress rating only and functional ...

Page 3

PUMA 2/67/77S4000/A/B - 20/25/35 Operating Modes The table below shows the logic inputs required to control the operating modes of each of the SRAMs on the modules. Mode CS Not Selected 1 Output Disable 0 Read 0 Write 0 1 ...

Page 4

PUMA 2/67/77S4000/A/B - 20/25/35 AC OPERATING CONDITIONS Read Cycle Parameter Read Cycle Time Address Access Time Chip Select Access Time Output Enable to Output Valid Output Hold from Address Change Chip Selection to Output in Low Z Output Enable to ...

Page 5

PUMA 2/67/77S4000/A/B - 20/25/35 Read Cycle Timing Waveform A0~A16 OE CS1~4 D0~31 Notes: (1) During the Read Cycle high for the modules. (2) Address valid prior to or coincident with CS transition Low. (3) t and t are ...

Page 6

PUMA 2/67/77S4000/A/B - 20/25/35 Write Cycle No.2 Timing Waveform A0~A16 CS1~4 WE1~4 D0~31out D0~31in AC Characteristics Notes (1) A write occurs during the overlap (t ( measured from the earlier going high to the ...

Page 7

PUMA 2/67/77S4000/A/B - 20/25/35 Package Details PUMA 67S4000 1.35 (0.053) 0.94 (0.037) PUMA 77S4000 PUMA 2S4000 27.69 (1.090) square 27.08 (1.066) square LEAD FINISH IS 300 µINCH MINIMUM SOLDER OVER 50 TO 350 µINCH NICKEL 6.86 (0.270) max 25.40 (1.000) ...

Page 8

PUMA 2/67/77S4000/A/B - 20/25/35 Pin Definitions PUMA 67S4000 / PUMA 77S4000 ...

Page 9

PUMA 2/67/77S4000/A/B - 20/25/35 SCREENING Military Screening Procedure MultiChip Screening Flow for high reliability product is in accordance with Mil-883 method 5004 . MB MULTICHIP MODULE SCREENING FLOW SCREEN Visual and Mechanical Internal visual Temperature cycle Constant acceleration Burn-In Pre-Burn-in ...

Page 10

PUMA 2/67/77S4000/A/B - 20/25/35 Ordering Information PUMA 2S4000ALMB- 20 Note : Although this data is believed to be accurate, the information contained herein is not intended to, and does not create any warranty of merchantibility or fitness for a particular ...

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