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Date: February 12, 1997 Sheet 9 of 25
Size Document Number REV
A3 96149 SC
Title
370P/J (RTC AND BIOS)
TAIPEI TAIWAN R.O.C
ACER
1
2
R9
10KR3
SD[0..7]
IRQ8#
IRQ8#
SD[0..7]
+5V
4,8
4,10,11,13,15
1 2
DX2
S1N4148
RTCIRQ8#
VCC
24
CS$
13
AS
14
R/W$
15
DS
17
RST$
18
RCL$
21
EXTRAM
22
BC
20
X1
2
X2
3
AD7
11
AD6
10
AD5
9
AD4
8
AD3
7
AD2
6
AD1
5
AD0
4
INT$
19
SQW
23
MOT
1
VSS
12
VSS
16
U27
BQ3285E
1
2
R35
10KR3
2 1
G1
GAP-OPEN
RTCAS
RTCRW
RTCDS
PWRGOOD#
RTCAS
RTCRW
RTCDS
SD7
SD1
SD2
SD3
SD4
SD5
SD6
SD0
+5V +5V
4
TPX3
TP-1
U40 PIN 22
SB: ADD DUMMY RESISTER TO
PWRGOOD#
23
24
24
1
2
BT1
BH-12
SA[0..15]
4
C265
SCD1U
1 2
X1
XTAL-32.768KHZ
A0
20
A1
19
A2
18
A3
17
A4
16
A5
15
A6
14
A7
13
A8
3
A9
2
A10
31
A11
1
A12
12
A13
4
A14
5
A15
11
A16
10
CE
30
VCC
8
VSS
24
VPP
9
DQ0
21
DQ1
22
DQ2
23
DQ3
25
DQ4
26
DQ5
27
DQ6
28
DQ7
29
WE#
7
OE
32
A17
6
U52
28F020-1
SA0
HDD+5V
CX30
SC3P50V3KN
CX31
SC3P50V3KN
3
2
1
Q8
S2N3906
C266
SCD1U
MEMW#
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
MEMW#
+12V
BIOSVPP
4
1
2
R222
10KR3
MEMR#
XSA16
XSA17
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA12
SA13
SA14
SA15
MEMR#
U52 IS TSOP PACKAGE,
MUST BE INSTALL.
4
8
8
9
10
8
1
4
7
U45C
SSHCT32
RTCROMCS#
DISROM
RTCROMCS#
DISROM
BIOSCE#
+5V
4
13
3
1
2
Q9
RN1424
FLASH_ON
FLASH_ON
8
## REMOVE U53 PAD