MPC2104P•MPC2105P
5
MOTOROLA FAST SRAM
PIN DESCRIPTIONS
Pin Locations Symbol
Type Description
66, 67, 68, 69, 71, 72, 73,
74, 76, 77, 78, 80, 81, 82,
83, 155, 156, 157, 158,
160, 161, 162, 163, 165,
166, 167, 169, 170, 171
A0 – A28 Input Address Inputs — (MSB:0, LSB:28).
64 ADS0 Input Data RAM Address Strobe.
172 BURSTMODE Input Burstmode. 0 = Linear, 1 = Interleaved.
59 CG0 Input Data RAM Output Enable.
30, 56, 115 CLK0 – CLK2 Input Clock Inputs — CLK2 is for Tag RAM, CLK0 and CLK1 are for Data RAMs only .
153 CNTEN0 Input Data RAM Count Enable.
138, 148 CWE0 – CWE1 Input Data RAM Write Enables — (MSB:0, LSB:1).
4, 5, 6, 7, 10, 11, 12, 14,
6, 17, 19, 20, 22, 24, 25,
26, 27, 93, 94, 95, 96, 99,
100, 101, 103, 105, 106,
108, 109, 111, 113, 117
DH0 – DH31 I/O High Data Bus — (MSB:0, LSB:31).
88 DIRTYIN Input Dirty input bit.
177 DIRTYOUT Output Dirty output bit.
32, 33, 34, 37, 38, 39, 40, 43,
44, 45, 47, 49, 50, 52, 53, 54,
119, 120, 122, 123, 124, 127,
128, 129, 131, 133, 134,
136, 137, 139, 141, 142
DL0 – DL31 I/O Low Data Bus — (MSB:0, LSB:31).
86 MATCH Output Tag RAM active high match indication.
2 PD0/IDSCLK Input Presence detect bit 0/EEPROM serial clock. (EEPROM option only).
91 PD1/IDSDATA I/O Presence detect bit 1/EEPROM serial data. (EEPROM option only).
3, 92 PD2, PD3 Output Presence detect bits.
63, 152 RESERVED Reserved pin.
176 STANDBY Input Standby pin. Reduces standby power consumption.
85 TCLR Input Tag RAM clear.
87 TG Input T ag RAM output enable.
175 TWE Input T ag RAM write enable.
174 VALIDIN Input T ag RAM valid bit.
84, 173 V
CC
Input + 5 V power supply. Must be connected.
8, 23, 51, 61, 75, 97,
112, 140, 150, 164
V
DD
Input + 3.3 V power supply. Must be connected.
1, 13, 29, 31, 41, 46, 55, 57,
70, 79, 89, 90, 102, 114,
116, 121, 130, 135, 143,
145, 147, 159, 168, 178
V
SS
Input Ground.
9, 15, 18, 21, 28, 35 – 36, 42,
48, 58, 60, 62, 65, 98, 104,
107, 110, 118, 125 – 126,
132, 144, 146, 149, 151, 154
NC — There is no connection to the module.