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512 K x 32 Static RAM
SYS32512ZK/LK - 010/012/015
Issue 5.0 June 1999
Description
The SYS32512 is a 512K x 8 SRAM module in a ZIP (ZK) or SIMM (LK & LKXA) packages with access times of 12 and 15ns, with 10ns parts under development. The device is available to commercial and industrial temperature grade. The LK SIMM package is designed for standard SIMM sockets. The LKXA is designed to fit both angled and standard sockets.
Block Diagram
A0~A18 /WE /OE
512K x 8
SRAM
/CS1
512K x 8
D0~7
SRAM
/CS2
512K x 8
D8~15
Features
• Access times of 10, 12 and 15ns. • 5V + 10%. • Commercial and Industrial temperature grades • 72 pin ZIP and SIMM packages. • Industry standard footprint. • Power dissipation. • Operating Power (32 Bit) 4.62W (max) • Low power standby. (TTL) 1.32W (max) (CMOS) 330mW (max) • Completely Static Operation.
/CS3
SRAM
D16~23
512K x 8
SRAM
/CS4
D24~D31
Pin Definition See page 2.
Pin Functions
Description Address Input Data Input/Output Chip Select Presence Detect Write Enable Output Enable No Connect Power Ground Signal A0~A18 D0~D31 /CS1~4 PD0~3 /WE /OE NC VCC VSS
Package Details
Plastic 72 Pin ZIP (ZK) Max. Dimensions (mm) - 97.80 x 20.61 x 5.90 Plastic 72 Pin SIMM (LK) Max. Dimensions (mm) - 108.08 x 15.00 x 5.25 Plastic 72 Pin SIMM (LKXA) Max. Dimensions (mm) - 108.08 x 20.32 x 4.55
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Pin Definition - SYS32512 ZK/LK/LKXA
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
Signal NC NC PD2 PD3 V SS PD0 PD1 D0 D8 D1 D9 D2 D10 D3 D11 V CC A0 A7 A1 A8 A2 A9 D12 D4 D13 D5 D14 D6 D15 D7 V SS /WE A15 A14 /CS2 /CS1
Pin 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72
Signal /CS4 /CS3 A17 A16 /OE V SS D24 D16 D25 D17 D26 D18 D27 D19 A3 A10 A4 A11 A5 A12 V CC A13 A6 D20 D28 D21 D29 D22 D30 D23 D31 V SS A18 NC NC NC
Note ZK : PD1=GND, PDO=PD2=PD3=OPEN
PAGE 2
Issue 5.0 June 1999
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Absolute Maximum Ratings(1)
DC Operating Conditions
Parameter Voltage on any pin relative to VSS Power Dissipation Storage Temperature
Symbol VT PT TSTG
(2)
Min -0.3 to 4.0 -55 to
Max +7.0
Unit V W
+125
O
C
Notes : (1) Stresses above those listed may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability (2) VT can be -2.0V pulse of less than 2ns.
Recommended Operating Conditions
Parameter Supply Voltage Input High Voltage Input Low Voltage Operating Temperature (Commercial)
(Industrial)
Symbol VCC VIH VIL TA TAI
Min 4.5 2.2 -0.3 0 -40
Typ 5.0 -
Max 5.5 VCC+0.3 0.8 70 85
Unit V V V
O O
C C
(I Suffix)
DC Electrical Characteristics (VCC=5V+10%, TA=0OC to 70OC)
Parameter Input Leakage Current Output Leakage .