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參數(shù)資料
| 型號： | MCM63R918A |
| 廠商： | Motorola, Inc. |
| 英文描述： | 8MBit Synchronous Late Write Fast Static RAM(8M位同步遲寫快速靜態(tài)RAM) |
| 中文描述： | 8MBit快速同步后寫入靜態(tài)存儲器（800萬位同步遲寫快速靜態(tài)內(nèi)存） |
| 文件頁數(shù)： | 4/21頁 |
| 文件大小： | 427K |
| 代理商： | MCM63R918A |
MCM63R836A
MCM63R918A
4
MOTOROLA FAST SRAM
MCM63R918A PIN DESCRIPTIONS
Pin Locations
Symbol
Type
Description
4K
CK
Input
Address, data in, and control input register clock. Active high.
4L
CK
Input
Address, data in, and control input register clock. Active low.
(a) 6D, 7E, 6F, 7G, 6H, 7K, 6L, 6N, 7P
(b) 1D, 2E, 2G, 1H, 2K, 1L, 2M, 1N, 2P
DQx
I/O
Synchronous Data I/O.
4F
G
Input
Output Enable functionality not supported. Must be tied to VSS or
driven to
≤
VIL max.
2A, 3A, 5A, 6A, 3B, 5B, 6B, 2C, 3C, 5C,
6C, 4N, 4P, 2R, 6R, 2T, 3T, 5T, 6T
SA
Input
Synchronous Address Inputs: Registered on the rising clock edge.
5L, 3G
(a), (b)
SBx
Input
Synchronous Byte Write Enable: Enables writes to byte x in
conjunction with the SW input. Has no effect on read cycles, active
low.
4E
SS
Input
Synchronous Chip Enable: Registered on the rising clock edge,
active low.
4M
SW
Input
Synchronous Write: Registered on the rising clock edge, active low.
Writes all enabled bytes.
4U
TCK
Input
Test Clock (JTAG).
3U
TDI
Input
Test Data In (JTAG).
5U
TDO
Output
Test Data Out (JTAG).
2U
TMS
Input
Test Mode Select (JTAG).
4D
ZQ
Input
Programmable Output Impedance: Programming pin.
7T
ZZ
Input
Enables sleep mode, active high.
4C, 2J, 4J, 6J, 4R, 5R
VDD
VDDQ
Vref
VSS
Supply
Core Power Supply.
1A, 7A, 1F, 7F, 1J, 7J, 1M, 7M, 1U, 7U
Supply
Output Power Supply: Provides operating power for output buffers.
3J, 5J
Supply
Input Reference: Provides reference voltage for input buffers.
3D, 5D, 3E, 5E, 3F, 5F, 5G, 3H, 5H, 3K,
5K, 3L, 3M, 5M, 3N, 5N, 3P, 5P, 3R
Supply
Ground.
4A, 1B, 2B, 4B, 7B, 1C, 7C, 2D, 7D, 1E,
6E, 2F, 1G, 4G, 6G, 2H, 4H, 7H, 1K, 6K,
2L, 7L, 6M, 2N, 7N, 1P, 6P, 1R, 7R,
1T, 4T, 6U
NC
—
No Connection: There is no connection to the chip.
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