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參數(shù)資料
| 型號(hào)： | EM23C512 |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | High Performance 64K × 8 CMOS ROM(高性能512K位（64K × 8）CMOS ROM) |
| 中文描述： | 高性能64K的× 8的CMOS光盤（高性能為512k位（64K的× 8）的CMOS光盤） |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 57K |
| 代理商： | EM23C512 |
1
* This specification are subject to be changed without notice.
64K X 8 CMOS ROM
10.22.1997
EM23C512 SERIES
GENERAL DESCRIPTION
The EM23C512 series high performance Read Only Memory is organized as 65,536 words by 8 bit. It is designed
to be compatible with all microprocessor and similar applications where high performance large bit storage and
simple interface are important design considerations.
The EM23C512P offers the simplest operation (no power down). Its programmable chip selects allow up to
four 512K ROMs to be Wired-OR without external decoding.
The EM23C512AP has the automatic power down feature. The power down capability is controlled by the
Chip Enable (CE/CE) input. When CE goes to high or CE goes low, the device will automatically goes to
power down mode and remains in a low power standby mode as long as CE remains high. This unique feature
provides system level power savings as much as 90%. An additional feature of the EM23C512AP is the Output
Enable (OE/OE) function. This eliminates bus connection in multiple bus microprocessor systems.
FEATURES
65,536 x 8 bit organization
Access time 150 ns (max.) at 4.5V
≤
V
CC
≤
5.5V
Low-power consumption:
Operating: 193 mW (max.)
Standby: 165
μ
W (max.)
Fully-static operation
Three-state outputs
Completely TTL compatible.
EM23C512P, EM23C512M
- Non power down version.
- Two programmable chip selects (CS).
EM23C512AP, EM23C512AM
- Automatic power down (CE).
- Output Enable function (OE).
Package:
EM23C512P, EM23C512AP
EM23C512M, EM23C512AM
- 28 pins 600 mil plastic DIP.
- 28 pins 300 mil plastic SOP.
PIN ASSIGNMENTS
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
D0
D1
D2
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDD
A14
A13
A8
A9
A11
CS1/CS1
A10
CS2/CS2
D7
D6
D5
D4
D3
EM23C512, EM23C512M
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
D0
D1
D2
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDD
A14
A13
A8
A9
A11
OE/OE
A10
CE/CE
D7
D6
D5
D4
D3
EM23C512A, EM23C512AM
T
T
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