Nellcor NPB-40 - Page 53

FOS S5-5
Figure S4-3
CPU PCB Schematic Diagram
034310
BT2
TP27
R16
10.0K
TP56
WD_RST
TP38
RWD_RST
IR/RED
R24
221
121
R15
VFB
TP4
11.5K
R9
RAMEN-L
BEEP_2
ADDR6
Y1 IS NOT AVAILABLE
Y2 IS USED ONLY IF
REDDC
MBRS330T3
CR7
POWER ENTRY
PLACE C23 AND C1
CR4
MBRS130
11
2
0.1U
C1
C20
0.1U
0.1U
C24
C25
0.1U
0.1U
C13
C21
0.1U
0.1U
C33
0.1U
C29
C17
0.1U
0.1U
C18
C22
0.1U
0.1U
C19
0.1U
C14
C3
0.1U
0.1U
C5
C11
0.1U
PWM2
L5
BLM31B06
BLM31B06
L4
OFF/ON
L6
BLM31B06
IR_OUT
IRLED/AV
L3
BLM31B06
SAMPIR
L1
BLM31B06
PWM1
L2
BLM31B06
SAMPRED
121
R26
RD-L
R25 121
RRD-L
RWR-L
120
RP2
7
16
15
14
13
12
9
3
4
5
6
8
11
10
ALE
RAD7
RAD6
RAD5
RAD4
RAD3
RAD2
RAD1
RAD0
PWM0
CR5
SMCJ10C
11
2
U10
2
1D
1Q
19
3
2D
2Q
18
4
3D
3Q
17
4D 4Q
16
5D
6
5Q
15
6D
7
6Q
14
7D
8
7Q
13
8D
9
8Q
12
C
11
1
OC
74HC573S
1
11
129
138
147
156
16
5
174
183
192AD0
ADDR0
AD1 ADDR1
AD2 ADDR2
AD3 ADDR3
AD4 ADDR4
AD5 ADDR5
AD6 ADDR6
AD7 ADDR7
ALE
ADDR_TRI
U11
2
1D
1Q
19
3
2D
2Q
18
4
3D
3Q
17
5
4D
4Q
16
5D
6
5Q
15
6D
7
6Q
14
7D
8
7Q
13
8D
9
8Q
12
C
11
1
OC
74HC573S
1
11
129
138
147
156
165
174
183
192AD8
ADDR8
AD9 ADDR9
AD10 ADDR10
AD11 ADDR11
AD12 ADDR12
AD13 ADDR13
AD14 ADDR14
AD15 ADDR15
ALE
1000P
C35
5%
VCC
VCC
1000P
C32
5%
VCCVCC
7343
C26
47U
10V
+
CR6
1
1N914S 3
13
BTN_PWR
POWER SWITCH CIRCUIT
PWR_DOWN
R11
150K
TP3
Q2
2N3904S
3
1
2
1
3
2
82.5K
R7
7343
C23
47U
10V
+
J3
1
2
3
4
5
To populate U5 with 256Kx16 (143011,171259), populate J4.
Note: To populate U5 with 64Kx16 (143003) or 128Kx16 (143010)
R18
10.0K
150K
R5
10.0K
R23
TP7
SERIAL INTERFACE
USE J2 PINS FOR TEST POINTS OF VCC, RAW+10V, RAW-5V
SCOPE PROBE GROUND
R14
15.8K
CURRENT
HIGH
SEPARATE VIAS
VSW
POWER SUPPLY CIRCUIT
T1
4
8
1
LPE-4841
4
5
2
7
3
6
8
1
RAW+10V
RAW-5V
FOR PINS 6 & 7
TO GROUND PLANE
ADDR14
ADDR15
U3
LT1373CS8
8
VSW
5
VIN
1
VC
S/S
4
3
NFB
GNDS
6
7
GND
FB
8
51
4
3
6
7
2
TP55
J5
1
2
3
4
5
POGO DATA CONTACTS
U9
74HC574S
4Q
OC
CLK
8D
7D
6D
5D
4D
3D
2D
1D
8Q
7Q
6Q
5Q
3Q
2Q
1Q
19
18
17
15
14
13
12
2
3
4
5
6
7
8
9
11
1
16
TP30
TP43
TP31
TP44
TP32
TP45
TEST POINTS
FACTORY TEST
STATIC RAM
10.0K
R20
R21
10.0K
U7B
74HC10S
6
5
4
3
ADDR11
U8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
G2B
G2A
G1
C
B
A
74HC138 - SMT
7
9
10
11
12
13
14
15
5
4
6
3
2
1
U2B
74HC14S
4
7
14
3
U1B
74HC74S
Q
VCC
Q
PRE
GND
D
CLR
CLK
8
14
9
10
7
12
13
11
TP23
VBAT
LCD_DATA
LCD_CLK
BEEP_1
LCD_CE
AD0
EXOUTEN-L
AD7
TP51
TP40
TP41
MEMBRANE SWITCH CONNECTOR
TP54
DE00 - DFFF
E000 - FFFF
ROMEN-L
CR3
MBRS130
21
C2
330P
49.9
R4
Power Supply Feedback
VBAT
R19
10.0K
VBAT
VBAT
VBAT
VCC
VCC
ADDRESS DECODING
VREF
ADDR15
RD-L
ROMEN-L
VCC
RD-L
WR-L
ADDR12
ADDR11
ADDR10
ADDR9
ADDR8
ADDR0
ADDR1
ADDR2
ADDR3
ADDR4
ADDR5
ADDR7
TP26
DATA CONNECTOR
TP42
N/C
ALE
TP6
TP9
AD1
AD0
TP29
TP24
TP10
TP14
TP15
TP17
TP20
TP19
TP18
TP16
TP12
TP22
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
TP37
TP49
TP36
TP48
TP35
TP47
TP34
TP46
TP33
ADDR15
ADDR14
ADDR13
ADDR12
ADDR11
ADDR10
ADDR9
ADDR8
ADDR7
ADDR6
ADDR5
ADDR4
ADDR3
ADDR2
ADDR1
ADDR0
REDDC
IRDC
RAW-5V
RSENS
22P
C9
C10
22P
HC49S
10MHZ
Y2
ATP-SM
10MHZ
Y1
14
TP8
RD-L
TP11
TP21
TP25
TP50
WR-L
VCC
U6
4
GND
1
PBRST
7
ST
2
TD
3
TOL
8
VCC
LTC1232
5
RST
6
~RST
4
1
72
3
8
5
6
VCC
CLINICAL SERIALTXD
RXD
LCD BOARD INTERFACE
RAMEN-L
AD7
AD6
AD5
AD4
AD3
AD2
AD0
VCC
ADDR7
ADDR6
ADDR5
ADDR4
ADDR3
ADDR2
ADDR1
ADDR9
ADDR8
ADDR12
ADDR11
ADDR10
ADDR13
ADDR14
AD15
AD14
AD13
AD12
AD11
AD10
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
AD1
VCC
AD0
VCC
R17
47.5K
VCC
ADDR12
ADDR9
WR-L
ADDR10
ADDR13
4.99K
R13
10V
47U
C7
7343
+
CR2
MBRS130
12
VCC
7343
C4
47U
10V
+
VCC
20V
22U
C8
7343
+
VBAT
EPROM
AD1
AD2
AD3
AD4
AD5
AD6
LCD_LIGHT
VCC
EXTERNAL OUTPUT PORT
TP53
TP2
U2A
74HC14S
1
14
7
2
VBAT
AD1
U7C
74HC10S
8
11
10
9
U7A
74HC10S
12
13
2
1
U5
27C1024
VPP
PWR
PGM
OE
N.C.
GND2
GND1
D9
D8
D7
D6
D5
D4
D3
D2
D15
D14
D13
D12
D11
D10
D1
D0
CE
A9
A8
A7
A6
A5
A4
A3
A2
A15
A14
A13
A12
A11
A10
A1
A0
2
44
43
22
42
12
34
10
11
14
15
16
17
18
19
4
5
6
7
8
9
20
21
3
35
32
31
30
29
28
27
26
41
40
39
38
37
36
25
24
TP39
ROM_DIS-L
MAN_RST
TP52
U12
A0
10
A1
9
A10
A11
A12
CE2/A13
NC/A14
A2
8
A3
7
A4
6
A5
5
A6
4
3
A7
A8
25
A9
24
CE
20
14
GND
O0
11
12
O1
13
O2
15
O3
16
O4
17
O5
18
O6
19
O7
OE
22
28
PWR
27
WE
5565S
10
9
21
23
2
26
1
8
7
6
5
4
3
25
24
20 14
11
12
13
15
16
17
18
19
22
28
27
Q1
2N3904S
2
3
1
BIGROM
J4
0
36.5K
R12
0000 - DFFF
BIGRAM
parts, do not populate location J4
R6
10.0K
SW_VBAT
R2
150K
CR1
1N914S
1
3
TP1
PWR_FB
VCC
10.0K
R3
BTN_1
R8
10.0K
BTN_2
BTN_SHIFT
VCC
10.0K
R10
6032
C16
10U
16V
+
NEAR T1 PIN 2
Note: Populate U12 with 8Kx8 (143101) or 32Kx8 (143102).
150K
R1
VBAT
BAT-
TP13
VREF
10V
47U
C12
7343
+
5%
C28
1000P
5%
C30
1000P
PLACE BY U4 PIN 14 PLACE BY U4 PIN 36
1000P
C31
5%
5%
C34
1000P
VCC
7343
C27
47U
10V
+
1000P
C36
5%
VCC
J2
9
87
65
43
20
2
19
1817
1615
1413
1211
10
1
LEDDIS
RAW+10V
IRAC
REDAC
TXD
ZERO-L
REDLED/AV
PHOTOI
IR_OUT
LCD_EN
PWR_DOWN
SAMPIR
OFF/ON
SAMPRED
RST-L
IRLED/AV
PWM2
PWM1
LEDDIS
BAT_VOLTBAT_VOLT
RSENS
IRAC
REDAC
IRDC
CLK_OUT
RXD
BTN_2
BTN_1
BTN_SHIFT
PWM0
U4
43
READY
RESET
16
NMI
3
EA
2
BUSWIDTH
64
P1.7/
P1.6/
P1.5/
ALE/
WRL/WR
40
WRH/BHE
41
RD
61
HOLD
32
HLDA
31
BREQ
30
ADV
62
XTAL2
XTAL1
13
VREF
VPP
37
1
PWR
38
P2.7/T2CAPT
P2.6/TWUP-DN
33
P2.5/PWM0
39
42
P2.4/T2RST
P2.3/T2CLK
44
15
P2.2/EXTINT
P2.1/RXD
17
18
P2.0/TXD
P1.4/PWM2
23
P1.3/PWM1
22
21
P1.2
P1.1
20
19
P1.0
INST
63
HSO3
35
HSO2
34
HSO1
29
HSO0
28
HSI3/HSO5
27
HSI2/HSO4
26
25
HSI1
HSI0
24
GND3
68
GND2
36
GND1
14
CLKOUT
65
ANGND
12
AD9
51
AD8
52
AD7
53
AD6
54
AD5
55
AD4
56
AD3
57
AD2
58
AD15
45
46
AD14
AD13
47
AD12
48
AD11
49
AD10
50
AD1
59
AD0
60
ACH7/P0.7
9
ACH6/P0.6
8
ACH5/P0.5
10
ACH4/P0.4
11
ACH3/P0.3
4
ACH2/P0.2
7
ACH1/P0.1
5
ACH0/P0.0
6
80C196KC
39
42
44
15
17
61
62
41
40
46
45
63
14
36
68
1
67
66
65
37
13
12
7
5
6
4
11
10
8
9
19
60
59
58
57
56
55
54
53
52
51
50
20
21
22
23
30
31
49
48
47
32
16
3
2
64
28
29
34
35
26
27
43
24
33
38
18
25
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD15
AD14
AD13
AD12
AD11
AD10
AD9
AD8
RAD15
RAD14
RAD13
RAD12
RAD11
RAD10
RAD9
RAD8
120
RP1
16
15
14
13
12
11
10
9
1
2
3
1
2
4
5
6
7
8
WR-L
FSAMPRED
BEEP_2
LCD_CE BEEP_1
LCD_DATA LCD_CLK
REDLED/AV ZERO-L
FPWM1
LCD_LIGHT
FOFF/ON
PHOTOI
FPWM2
FSAMPIR
IR/RED
FIRLED/AV
LCD_EN
J1
9
87
65
43
20
2
19
1817
1615
14
13
1211
10
1
0.1U
C6
0.75A
R22
SELF RESETTING FUSE
VCC
RAMEN-L
EXOUTEN-L
PWR_ON
PWR_ON
TP5
BAT+
BT1
1
1
1
2
3
2
3
2
UNUSED GATES
VBAT
U1A
74HC74S
Q
VCC
Q
PRE
GND
D
CLR
CLK
6
14
5
4
7
2
1
3
VBAT
U2C
74HC14S
5
14
7
6
VBAT
U2D
74HC14S
8
7
14
9
VBAT
U2E
74HC14S
11
14
7
10
VBAT
U2F
74HC14S
12
7
14
13
NOTES:
1. ALL CAPACITORS ARE 10% 50V 1206 PACKAGE
2. ALL RESISTORS ARE 1% 1/8W 1206 PACKAGE
UNLESS OTHERWISE NOTED.
UNLESS OTHERWISE NOTED.