BB Board
TP401
FB102
C101
R117
D102
C102
R118
D103
C103
R122
C116
D104
C117
R132
C108
C122
R128
D105
R120
C128
C142
R133
C137
IC105
IC101
IC104
IC106
24LC21AT/SN (IC101)
ST24FC21M6TR
H/V
GENERATOR
SDA
5
I/O
MEMORY
EEPROM
VCLK
CONTROL
CONTROL
XDEC
7
ARRAY
LOGIC
LOGIC
SCL
6
PAGE LATCHES
YDEC
VCC
8
VSS
4
SENSE AMP
R/W CONTROL
1 2 3
NC NC NC
74VHC240MTCX (IC105)
20
19
18
17
16
15
14
13
12
11
1
2
3
4
6
7
8
9
10
5
TP101
C205
TP102
IC108
C203
TP103
C209
C222
R215
74VHC125MTCX (IC203, 304)
OE
14
VCC
1
1
OE
2
13
1A
4
1Y
3
12
4A
OE
2
4
11
4Y
OE
2A
5
10
3
2Y
6
9
3A
8
GND
7
3Y
BB
BB
C323
IC205
R316
R312
FB303
FB301
C335
IC303
D301
IC302
CN102
CXA1875AM (IC107)
16
15
14
13
LEVEL
CONVERTER
LEVEL
CONVERTER
POWER
ON
RESET
LATCH
LATCH
–
DAC
DAC
+
VCC
REG
AMP
AMP
1
2
3
4
6-8
6-8
IC405
RB403
RB402
RB404 RB405
R447
R446
R248
RB413
RB412
RB411
RB410
IC304
LP2985IM5X (IC201, 404)
12
11
10
9
ON/OFF
3
OPEN COLLECTOR
LEVEL
LATCH
CONVERTER
4
I 2 C DECODER
LATCH
LATCH
LATCH
DAC
DAC
DAC
AMP
AMP
AMP
5
6
7
8
IC401
IC402
BB
-A SIDE-
SUFFIX: -12
V
IN
1
V
1.23V
REF
5
V
OUT
OVER CURRENT/
OVER TEMP
PROTECTION
2
VPL-CS4/CX4