Specifications

2–8 System Configuration and Connectors
Subject to Change – 17 January 1997
AlphaPC 164 Connector Pinouts
B43 +3V B44 C/BE#[1] B45 AD[14] B46 GND
B47 AD[12] B48 AD[10] B49 GND B50 Not used
B51 Not used B52 AD[08] B53 AD[07] B54 +3V
B55 AD[05] B56 AD[03] B57 GND B58 AD[01]
B59 +5V B60 ACK64# B61 +5V B62 +5V
64-Bit PCI Connectors Only (J26, J29)
A63 GND A64 C/BE#[7] A65 C/BE#[5] A66 +5V
A67 PAR64 A68 D[62] A69 GND A70 D[60]
A71 D[58] A72 GND A73 D[56] A74 D[54]
A75 +5V A76 D[52] A77 D[50] A78 GND
A79 D[48] A80 D[46] A81 GND A82 D[44]
A83 D[42] A84 +5V A85 D[40] A86 D[38]
A87 GND A88 D[36] A89 D[34] A90 GND
A91 D[32] A92 — A93 GND A94 —
B63 — B64 GND B65 C/BE#[6] B66 C/BE#[4]
B67 GND B68 D[63] B69 D[61] B70 +5V
B71 D[59] B72 D[57] B73 GND B74 D[55]
B75 D[53] B76 GND B77 D[51] B78 D[49]
B79 +5V B80 D[47] B81 D[45] B82 GND
B83 D[43] B84 D[41] B85 GND B86 D[39]
B87 D[37] B88 +5V B89 D[35] B90 D[33]
B91 GND B92 — B93 — B94 GND
Table 2–3 ISA Expansion Bus Connector Pinouts (J33, J35)
Pin Signal Pin Signal Pin Signal Pin Signal
1 GND 2 IOCHCK# 3 RSTDRV 4 SD7
5 +5V 6 SD6 7 IRQ9 8 SD5
9 –5V 10 SD4 11 DRQ2 12 SD3
13 –12V 14 SD2 15 ZEROWS# 16 SD1
17 +12V 18 SD0 19 GND 20 IOCHRDY
21 SMEMW# 22 AEN 23 SMEMR# 24 SA19
25 IOW# 26 SA18 27 IOR# 28 SA17
29 DACK3# 30 SA16 31 DRQ3 32 SA15
33 DACK1# 34 SA14 35 DRQ1 36 SA13
37 REFRESH# 38 SA12 39 SYSCLK 40 SA11
41 IRQ7 42 SA10 43 IRQ6 44 SA9
45 IRQ5 46 SA8 47 IRQ4 48 SA7
Table 2–2 (Continued) Peripheral Component Interface (PCI) Bus Connector Pinouts
Pin Signal Pin Signal Pin Signal Pin Signal