MCM63P636 データシートの表示（PDF） - Motorola => Freescale
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MCM63P636 Datasheet PDF : 27 Pages
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TQFP PIN DESCRIPTIONS
Pin Locations
85
(a) 1, 2, 3, 6, 7, 8, 9, 12, 13, 18,
19, 22, 23, 24, 25, 28, 29, 30
(b) 51, 52, 53, 56, 57, 58, 59, 62, 63,
68, 69, 72, 73, 74, 75, 78, 79, 80
89
84
32, 33, 34, 35, 44, 45, 46,
47, 48, 49, 81, 82, 99, 100
36, 37
98
97
92
93
16
14
64
66
88
15, 41, 65, 91
38, 43, 87, 94
4, 11, 20, 27, 54, 61, 70, 77
5, 10, 17, 21, 26, 40,
55, 60, 67, 71, 76, 90
31, 39, 42, 50, 86
83
95, 96
Symbol
ADS
DQx
Type
Input
I/O
Description
Synchronous Address Status: Active low, used to initiate read or write
state machines latch in external addresses, or deselect chip.
Synchronous Data I/O: “x” refers to the word being read or written
(I/Os a and b).
K
RESET
SA
SA1, SA0
SE1
SE2
SE3
SK
STRBA
STRBA
STRBB
STRBB
W
VDD
VDDI
VDDQ
VSS
Input Clock: This signal registers the address, data in, and all control signals.
Input Asynchronous Power–On Reset: Active low at power up, resets internal
state machines.
Input Synchronous Address Inputs: These inputs are registered and must
meet setup and hold times.
Input
Synchronous Address Inputs: These pins must be wired to the two
LSBs of the address bus for proper burst operation. These inputs are
registered and must meet setup and hold times.
Input Synchronous Chip Enable: Active low to enable chip.
Input Synchronous Chip Enable: Active high to enable chip.
Input Synchronous Chip Enable: Active low to enable chip.
Input Data Strobe Clock: 180 degrees out–of–phase with K. Used only with
data strobes.
Output Data Strobe: Used in reference to DQa I/Os.
Output Data Strobe: Used in reference to DQa I/Os.
Output Data Strobe: Used in reference to DQb I/Os.
Output Data Strobe: Used in reference to DQb I/Os.
Input Synchronous Write.
Supply Core Power Supply.
Supply Input Power Supply.
Supply I/O Power Supply.
Supply Ground.
NC
NU/VDD
NU/VSS
— No Connection: There is no connection to the chip.
— Not Usable: There is an internal connection to the chip. This pin may be
left unconnected or tied to VDD.
— Not Usable: There is an internal connection to the chip. This pin may be
left unconnected or tied to VSS.
MOTOROLA FAST SRAM
MCM63P636
5
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