Panasonic KX-HCM280, Service Manual

Page: 96 / 182

Pin No. Pin Name I/O Description
59
60
61
MD15
MD14
MD13
I/O
I/O
I/O
DRAM Data
62
63
VSS
V DD3
P
P
GND
VDD (3.3V)
64
65
66
MD12
MD11
MD10
I/O
I/O
I/O
DRAM Data
67 VDD5 (VDD3) P VDD (5V) (When 3.3V Simple Power VDD
(3.3V))
68
69
70
71
72
73
MD9
MD8
MD7
MD6
MD5
MD4
I/O
I/O
I/O
I/O
I/O
I/O
DRAM Data
74 VSS P GND
75
76
77
78
MD3
MD2
MD1
MD0
I/O
I/O
I/O
I/O
DRAM Data
79 ZRAS1 O DRAM RAS1
80 ZRAS0 O DRAM RAS0
81 ZCAS O DRAM CAS
82 ZWE O DRAM Write Enable
83 ZOE O DRAM Output Enable
84 ZBREQ I DRAM Bus Request
85 V DD3 P VDD (3.3V)
86 ZBACK O DRAM Bus Acknowledge
87 ZPDN I Power Down
88 ZRESET I Reset
89
90
VDD5 (VDD3)
VSS
P
P
VDD (5V) (When 3.3V Simple Power VDD
(3.3V))
GND
91 ZIRQ O Interrupt Request
92 ZDACK I DMA Acknowledge
93 ZDRQ O DMA Request
94 RDY/ZDTACK O 80 Series Ready/68 Series DTACK
95 ZWR/ZDS I 80 Series Write/68 Series Data Strobe
96 ZRD/RW I 80 Series Read/68 Series Read & Write
97 CPUTYPE I CPU 80 Series and 68 Series Switch
98 ZCS I Chip Select
99
100
A1
A0
I
I
Address
96