参数资料
型号: EM78459
英文描述: Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 14-SOIC
中文描述: 8位微控制器的通用产品
文件页数: 34/57页
文件大小: 854K
代理商: EM78459
EM78458/459
MASK ROM
This specification is subject to change without prior notice.
2002/03/01
4
3. PIN ASSIGNMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
EM78459
EM78458
VSS
P60/ADC1
P61/ADC2
P62/ADC3
P63/ADC4
P64/ADC5
P65/ADC6
P66/ADC7
P56/CIN+
P57/CO
VDD
OSCI
OSCO
P53/VREF
P52/PWM2
P51/PWM1
P50/INT
P67/ADC8
P54/TCC
P55/CIN-
P60/ADC1
P61/ADC2
P62/ADC3
P63/ADC4
P64/ADC5
P65/ADC6
P66/ADC7
P56/CIN+
P57/CO
VSS
ENTCC
VSS
OSCI
OSCO
P53/VREF
P52/PWM2
P51/PWM1
P50/INT
P67/ADC8
P54/TCC
P55/CIN-
VDD
RESET
VDD
Fig. 1 Pin Assignment
Table 1 EM78458 Pin Description
Symbol
Pin No.
Type
Function
VDD
16
-
Power supply.
OSCI
18
I
* XTAL type: Crystal input terminal or external clock input pin.
* RC type: RC oscillator input pin.
OSCO
17
O
*XTAL type: Output terminal for crystal oscillator or external clock input
pin.
*RC type: Clock output with a period of one instruction cycle time, the
prescaler is determined by the CONT register.
* External clock signal input.
P50
12
I
* General-purpose Input only.
* Default value while power-on reset.
P51 ~ P57
13~15
19, 20,
1, 2
I/O
* General-purpose I/O pin.
* Default value while power-on reset.
P60 ~ P67
3, 4,
6~11
I/O
* General-purpose I/O pin.
* Default value while power-on reset.
INT
12
I
* External interrupt pin triggered by falling edge.
ADC1~ADC8
3, 4,
6 ~ 11
I
* Analog to Digital Converter.
* Defined by AD-CMPCON (IOCA0)<2:4>.
PWM1,
13, 14
O
* Pulse width modulation outputs.
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