參數(shù)資料
型號: HD40A4639R
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計算機)
中文描述: 4位單片機(4位單片微計算機)
文件頁數(shù): 120/133頁
文件大小: 803K
代理商: HD40A4639R
HD404639R Series
120
3. RD
0
–RD
3
pins are in analog input mode when no I/O current is flowing.
Test conditions: MCU: DTMF does not operate
Pins:
RD
0
/COMP
0
at GND (0 V to 0.3 V)
RD
1
/COMP
1
at GND (0 V to 0.3 V)
RD
2
/COMP
2
at GND (0 V to 0.3 V)
RD
3
/COMP
3
at GND (0 V to 0.3 V)
RE
0
/VC
ref
at GND (0 V to 0.3 V)
4. I
, I
and I
SBY3
are the source currents when no I/O current is flowing while the MCU timer is
operating.
Test conditions: MCU: I/O reset
Serial interface stopped
DTMF does not operate
Standby mode
Pins:
RESET at GND (0 V to 0.3 V)
TEST
at V
CC
(V
CC
–0.3 to V
CC
)
5. These are the source currents when no I/O current is flowing.
Test conditions: Pins:
RESET at GND (0 V to 0.3 V)
TEST
at V
CC
(V
CC
–0.3 to V
CC
)
D
13
*
at V
CC
(V
CC
–0.3 to V
CC
)
*
Applies to HD407A4639R.
6. RAM data retention.
7. The reference voltage is the expected internal VC
ref
voltage selected by the compare control
register (CCR: $016).
Example: when CCR = $2, reference voltage is 4/22 x V
CC.
8. Applies to HD40A4638R, HD40A4639R, HD407A4639R.
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