1/16W
5%
10K
1/16W
5%
10K
1/16W
5%
10K
16V
10%
0.1UF
16V
10%
0.1UF
VCC3B
MAX3244
GND
R5IN
R4IN
R3IN
R2IN
R1IN
INVALID#
T3OUT
T2OUT
T1OUT
V-
V+
R5OUT
R4OUT
R3OUT
R2OUT
R1OUT
R2OUTB
FORCEON
FORCEOFF#
T3IN
T2IN
T1IN
C2-
C2+
C1-
C1+
VCC
GND
GND
16V
10%
0.1UF
GND
16V
10%
0.1UF
VCC3A
16V
10%
0.01UF
IN
OUT
IN
OUT
OUT
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
PART NO.
TITLE
DESIGNER
CHECKED
APPROVED
CLASS
DATE
EC NO.
PART NO.
DEVELOPMENT NO.
Q/M
/
THIS DOCUMENT IS THE PROPERTY OF
IBM ITS USE IS AUTHORIZED ONLY FOR
RESPONDING TO A REQUEST FOR QUOTATION
OR FOR THE PERFORMANCE OF WORK FOR
IBM. ALL QUESTIONS MUST BE REFERRED
TO THE IBM PURCHASING DEPARTMENT.
IN
OUT
OUT
NC
OUT
OUT
OUT
OUT
OUT
IN
OUT
OUT
OUT
OUT
MAX3243
FORCEON
FOCEOFF
NOMAL MODE
HIGH
HIGH
ADD GND SHILED UNDER CHARGE PUMP CIRCUIT TO
PROTECT POWER LINE NOISE
LOW
POWER DOWN MODE
DO NOT CARE
AUTO POWER DOWN MODE
CAPACITORS FOR CHARGE PUMP SHOULD BE USED TYPE B AND LOW ESR TYPE.
CHARGE PUMP CAPACITOR SHOULD BE PLACED NEAR PINS(1/2/3/24/27/28)
DO NOT WIRE SIGNALS UNDER PINS (1/2/3/24/25/26/27/28)
R1IN/R2IN/R3IN/R5IN HAVE INTERNAL PULLDOWN(5K OHM).
LOW
HIGH
SERIAL I/F
1608
1608
1608
1608
RIMON
COMATXD
-COMADTR
IORXD
-IODSR
-IOCTS
-IODCD
-IORI
-IORTS
-IODTR
IOTXD
-SERSTBY
-COMACTS
COMARXD
-COMADSR
-COMARTS
1005
1005
1005
1005
-COMADCD
-COMARI
NO_ASM
25
70
TORONTO-4.5
_______
Y.I
10/02/01
_______
_______
OCT/02/01 VER 0.86
U24
16
15
14
13
12
11
10
4
2
1
3
9
8
7
6
5
28
27
26
25
24
23
22
21
20
19
18
17
R520
1
2
R524
1
2
R552
1
2
C496
1
2
C431
1
2
C535
1
2
C534
1
2
C355
1
2
20.4Q>
24.3Q>
24.3Q>
58.3K<
41.2J<
58.3K<
41.3Q<
58.3K<
41.2H<
58.3K<
41.2Q<
58.3K<
41.2A<
58.3K<
41.2J<
58.3K<
41.3A<
58.3K<
41.2H<
22.7N>
24.3Q<
24.3Q< 20.5C<
24.3Q<
24.3Q>
24.2Q<
24.2Q<