參數(shù)資料
型號: HD404849H
廠商: Hitachi,Ltd.
英文描述: SPLICE
中文描述: 4位單片機
文件頁數(shù): 106/125頁
文件大小: 471K
代理商: HD404849H
HD404849 Series
106
Pin No.
MCU Mode
PROM Mode
Pin No
MCU Mode
PROM Mode
FP-80A,
TFP- 80C FP-80B Pin Name I/O
Pin Name I/O
FP- 80A,
TFP-80C
FP-80B Pin Name
I/O
Pin
Name
I/O
55
57
SEG34
O
68
70
COM3
O
56
58
SEG35
O
69
71
COM4
O
57
59
SEG36
O
70
72
V1
58
60
SEG37
O
71
73
V2
59
61
SEG38
O
72
74
V3
60
62
SEG39
O
73
75
V
CC
AV
CC
AN0
V
CC
V
CC
61
63
SEG40
O
74
76
62
64
SEG41
O
75
77
I
63
65
SEG42
O
76
78
AN1
I
64
66
SEG43
O
77
79
AN2
I
65
67
SEG44
O
78
80
AN3
I
66
68
COM1
O
79
1
R3
0
/AN
4
R3
1
/AN
5
I/O
A
1
A
2
I
67
Notes: 1. I/O: Input/output pin, I: Input pin, O: Output pin
2. Each of O
0
–O
4
has two pins; before using, each pair must be connected together.
69
COM2
O
80
2
I/O
I
PROM Mode Pin Functions
V
PP
:
Applies the programming voltage (12.5 V
±
0.3 V) to the built-in PROM.
CE
:
Inputs a control signal to enable PROM programming and verification.
OE
:
Inputs a data output control signal for verification.
A
0
–A
14
: Act as address input pins of the built-in PROM.
O
0
–O
4
:
Act as data bus input pins of the built-in PROM. Each of O
0
–O
4
has two pins; before using these
pins, connect each pair together.
M
0
,
M
,
RESET
, TEST:
Used to set PROM mode. The MCU is set to PROM mode by pulling
M
0
,
M
1
,
and
RESET
low, and
TEST
high.
Other Pins:
Connect pins AV
CC
, OSC
1
, D
2
, D
3
, R7
3
/SEG20, and V
CC
to V
CC
. Connect pins AV
SS
and X1 to
GND. Leave other pins open.
Programming the Built-In PROM
The MCU’s built-in PROM is programmed in PROM mode. PROM mode is set by pulling
RESET
,
M
0
,
and
M
1
low, and TEST high. In PROM mode, the MCU does not operate, but it can be programmed in the
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