UPD421 Datasheet PDF - NEC
| Part Number | UPD421 | |
| Description | 8K BIT STATIC RAM | |
| Manufacturers | NEC | |
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There is a preview and UPD421 download ( pdf file ) link at the bottom of this page. Total 4 Pages | ||
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NEe Microcomputers, Inc.
NEe
fL PD421
J.L PD421-1
fL PD421-2
fL PD421-3
J.L PD421-5
8K BIT STATIC RAM
DESCR IPTION
The NEC MPD421 is a very high speed 8192 bit static Random Access Memory organ-
ized as 1024 words by 8 bits. Features include a power down mode controlled by the
chip select input for an 80% power saving.
FEATURES
• 1024x8-bitOrganization
• Very Fast Access Time: 150/200/250/300/450 ns
• Single +5V Power Supply
• Low Power Standby Mode
• N-Channel Silicon Gate Process
• Fully TTL Compatible
• 6-Device Static Cell
• Three State Common I/O
• Compatible with 8108 and Equivalent Devices
• Available in 22 Pin Ceramic Dual-in-Line Package
11
PIN CONFIGURATION
A6
22 Vee
As 2
21 A7
A4 3
A3 4
AS
19 A9
A2 5 MPD lS Cs
A1 6
421 17 WE
AO
1/°1
1/°2
1/°3
GND
7
S
9
10
11
16 I/OS
15 1/°7
14 1/°6
13 1/°5
12 1/°4
PIN NAMES
AO-Ag
Address Inputs
WE Write Enable
es Chip Select
1/0,-1/08 Data Input Output
VCC
Power (+5V)
GND
Ground
77
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for UPD421 electronic component. |
| Information | Total 4 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ UPD421.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| UPD421 | The function is 8K BIT STATIC RAM. NEC | |
| UPD421-1 | The function is 8K BIT STATIC RAM. NEC | |
| UPD421-2 | The function is 8K BIT STATIC RAM. NEC | |
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