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A
B
C
9
8
7
6
-COMADTR
24.3Q>
IN
-COMARTS
5
24.3Q>
IN
COMATXD
24.3Q>
IN
-SERSTBY
22.7N>
IN
RIMON
20.4Q>
OUT
-COMADCD
24.2Q<
OUT
-COMARI
24.2Q<
OUT
-COMACTS
24.3Q<
OUT
-COMADSR
24.3Q<
OUT
COMARXD
4
24.3Q< 20.5C<
OUT
3
2
1
0
_______
A
B
C
D
E
F
VCC3B
0.1UF
10%
16V
1
2
C431
1608
0.1UF
10%
16V
1
2
C496
1608
R1IN/R2IN/R3IN/R5IN HAVE INTERNAL PULLDOWN(5K OHM).
DO NOT WIRE SIGNALS UNDER PINS (1/2/3/24/25/26/27/28)
CHARGE PUMP CAPACITOR SHOULD BE PLACED NEAR PINS(1/2/3/24/27/28)
ADD GND SHILED UNDER CHARGE PUMP CIRCUIT TO
PROTECT POWER LINE NOISE
CAPACITORS FOR CHARGE PUMP SHOULD BE USED TYPE B AND LOW ESR TYPE.
FORCEON
FOCEOFF
D
E
F
G
H
J
VCC3A
C355
0.01UF
10%
16V
1005
GND
MAX3243
0.1UF
U24
MAX3244
VCC
0.1UF
28
27
C1+
V+
24
3
C1-
V-
1
C2+
2
C2-
14
9
T1IN
T1OUT
13
10
T2IN
T2OUT
12
11
T3IN
T3OUT
22
21
NC
FORCEOFF#
INVALID#
23
FORCEON
20
R2OUTB
19
4
R1OUT
R1IN
18
5
R2OUT
R2IN
17
6
R3OUT
R3IN
16
7
R4OUT
R4IN
15
8
R5OUT
R5IN
GND
GND
NOMAL MODE
POWER DOWN MODE
AUTO POWER DOWN MODE
HIGH
DO NOT CARE
HIGH
LOW
G
H
J
K
L
M
DATE
OCT/02/01 VER 0.86
10%
16V
1
2
C534
1608
10%
16V
1
2
GND
C535
1608
-IODTR
41.3A<
58.3K<
OUT
-IORTS
41.2J<
58.3K<
OUT
IOTXD
41.2H<
58.3K<
OUT
-IODCD
41.2Q<
58.3K<
OUT
-IORI
41.2A<
58.3K<
OUT
-IOCTS
41.2H<
58.3K<
OUT
-IODSR
41.3Q<
58.3K<
OUT
IORXD
41.2J<
58.3K<
OUT
LOW
HIGH
Y.I
DESIGNER
CHECKED
APPROVED
CLASS
THIS
DOCUMENT
IS
IBM
ITS
USE IS AUTHORIZED ONLY
RESPONDING TO A REQUEST FOR QUOTATION
OR
FOR
THE PERFORMANCE OF WORK
IBM.
ALL QUESTIONS MUST BE REFERRED
TO THE IBM PURCHASING DEPARTMENT.
K
L
M
N
P
Q
PART NO.
EC NO.
_______
9
DEVELOPMENT NO.
Q/M
/
25
70
8
7
6
5
4
3
2
1
PART NO.
10/02/01
_______
TITLE
TORONTO-4.5
SERIAL I/F
0
THE PROPERTY
OF
FOR
FOR
N
P
Q
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