16-BIT CMOS STATIC RAM - Toshiba Semiconductor
Description
TC55VZM216AJJN/AFTN08,10,12
TOSHIBA MOS DIGITAL INTEGRATED CIRCUIT SILICON GATE CMOS
262,144-WORD BY 16-BIT CMOS STATIC RAM DESCRIPTION
The TC55VZM216AJJN/AFTN is a 4,194,304-bit high-speed static random access memory (SRAM) organized as 262,144 words by 16 bits.
Fabricated using CMOS technology and advanced circuit techniques to provide high speed, it operates from a single 3.
3 V power supply.
Chip enable ( CE ) can be used to place the device in a low-power mode, and output enable ( OE ) provides fast memory access.
Data byte control signals ( LB , UB ) provide lower and upper byte access.
This device is well suited to cache memory applications where high-speed access and high-speed storage are required.
All inputs and outputs are directly LVTTL compatible.
The TC55VZM216AJJN/AFTN is available in plastic 44-pin SOJ and TSOP with 400mil width for high density surface assembly.
FEATURES
• Fast access time (the following are maximum values) TC55VZM216AJJN/AFTN08:8 ns TC55VZM216AJJN/AFTN10:10 ns TC55VZM216AJJN/AFTN12:12 ns Low-power dissipation (IDDO2) (the following are maximum values)
Cycle Time Operation (max) 8 140 10 130 12 120 ns mA
•
• • • • • •
Single power supply voltage of 3.
3 V ± 0.
3 V Fully static operation All inputs and outputs are LVTTL compatible Output buffer control using OE Data byte control using LB (I/O1 to I/O8) and UB (I/O9 to I/O16) Package: SOJ44-P-400-1.
27 (AJJN) (Weight: 1.
64 g typ) TSOP II44-P-400-0.
80 (AFTN) (Weight: 0.
45 g typ)
Standby:4 mA (both devices)
PIN ASSIGNMENT (TOP VIEW)
44 PIN SOJ 44 PIN TSOP
PIN NAMES
A0 to A17 A4 A3 A2 A1 A0 CE I/O1 I/O2 I/O3 I/O4 VDD GND I/O5 I/O6 I/O7 I/O8 WE A15 A14 A13 A12 A16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 A5 A6 A7 OE UB LB I/O16 I/O15 I/O14 I/O13 GND VDD I/O12 I/O11 I/O10 I/O9 NU A8 A9 A10 A11 A17 A4 A3 A2 A1 A0 CE I/O1 I/O2 I/O3 I/O4 VDD GND I/O5 I/O6 I/O7 I/O8 WE A15 A14 A13 A12 A16 1 2 3 4 5 6 7 8 9 1...
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