HBD-E385/E390/T39
59
IC6401 MFI341S2162 (MB148 BOARD (4/9))
1
NC
3
NC
4
RESET
5
VCC
6
NC
7
NC
8
NC
9
NC
10
NC
2
MODE1
20 NC
19 NC
18 NC
17 NC
16 NC
15 NC
14 MODE0
13 12C_SDA
12 12C_SCL
11 VSS
System control
Security logic
RNG
WDT
FMU
Voltage monitoring circuit
HB/300H CPU
I/O port
ROM (112 kbytes)
Internal data bus
RAM (4 kbytes)
EEPROM (16 2 kbytes)
Interval timer 1
Interval timer 2
Modular multiplication
coprocessor
On-chip
oscillator
Power-on
reset circuit
Internal address bus
Register
(612 bytes)
5
OSC
OSC
DATA
SELECTOR
6
DOUT
7
DIN
8
CLK
9
STB
10
K1
11
K2
SERIAL
INTERFACE
DISPLAY MEMORY
24 BITS x 12 WORDS
24-BIT OUTPUT
LATCH
12-BIT SHIFT
REGISTER
SEGMENT
DRIVER
TIMING GENERATOR
KEY SCAN
COMMAND
DECODER
DIMMING
CIRCUIT
KEY DATA MEMORY
(2 x 16 BITS)
4-BIT LATCH
1
LED1
2
LED2
3
LED3
4
LED4
24
16
16
12
4
8
8
4
8
27 SG14
29 SG16
30 VEE
28 SG15
8
31 GR12
33 GR10
32 GR11
23 SG10
24 SG11
25 SG12
26 SG13
22
SG9
21
SG8
20
SG7
19
SG6
18
SG5
17
SG4
16
SG3
15
SG2
14
SG1
MULTIPLEXED
DRIVER
34
GR9
35
GR8
36
GR7
37
GR6
39
GR4
40
GR3
41
GR2
42
GR1
43
VDD
44
VSS
13
VDD
12
VSS
38
GR5
GRID
DRIVER
