LH5P864 Datasheet, PDF (1/10 Pages) Sharp Electrionic Components – CMOS 512K (64K x 8) Pseudo-Static RAM

LH5P864
CMOS 512K (64K × 8) Pseudo-Static RAM
FEATURES
• 65,536 × 8 bit organization
• Access time: 80 ns (MAX.)
• Cycle time: 140 ns (MIN.)
• Single +5 V power supply
• Power consumption:
Operating: 440 mW (MAX.)
Standby (TTL level): 22 mW (MAX.)
Standby (CMOS level): 2.75 mW (MAX.)
• Operating temperature: 0 to 70°C
• TTL compatible I/O
• 512 refresh cycles/8 ms (MAX.)
• Available for auto-refresh and
self-refresh modes
• Package: 32-pin, 525-mil SOP
DESCRIPTION
The LH5P864 is a 512K-bit Pseudo-Static RAM or-
ganized as 65,536 × 8 bits. It is fabricated using sili-
con-gate CMOS process technology. With its built-in
oscillator, it is easy to refresh memories without an
external clock.
PIN CONNECTIONS
32-PIN SOP
TOP VIEW
TEST 1
NC 2
A₁₄
3
A₁₂
4
A₇
5
A₆
6
A₅
7
A₄
8
A₃
9
A₂ 10
A₁ 11
A₀ 12
I/O₀ 13
I/O₁ 14
I/O₂ 15
GND 16
32 V_CC
31 NC
30 CE₂
29 R/W
28 A₁₃
27 A₈
26 A₉
25 A₁₁
24 OE/RFSH
23 A₁₀
22 CE₁
21 I/O₇
20 I/O₆
19 I/O₅
18 I/O₄
17 I/O₃
5P864-1
Figure 1. Pin Connections for SOP Package
1