EM78P153S
OTP ROM
3. PIN ASSIGNMENTS
1
2
3
4
5
6
7
P51
P52
P50
14
13
12
11
10
9
P67
P66
P53
Vss
Vdd
P65/OSCI
P64/OSCO
P63//RST
P60//INT
P61
P62/TCC
8
Fig. 1 Pin assignment
Table 1 Pin description
Symbol Pin No. Type
Vdd
Function
4
5
-
Power supply.
* General purpose I/O pin.
* External clock signal input.
P65/OSCI
I/O * Input pin of XT oscillator.
* Pull-high/open-drain
* Wake up from sleep mode when the status of the pin changes.
* General purpose I/O pin.
* External clock signal input.
P64/OSCO
P63//RESET
6
7
I/O * Input pin of XT oscillator.
* Pull-high/open-drain
* Wake up from sleep mode when the status of the pin changes.
* If set as /RESET and remain at logic low, the device will be under reset.
* Wake up from sleep mode when the status of the pin changes.
I
* Voltage on /RESET must not exceed Vdd during the normal mode.
* Internal Pull-high is on if defined as /RESET.
* P63 is input pin only
* General purpose I/O pin.
* Pull-high/open-drain/pull-down.
P62/TCC
P61
8
9
I/O
I/O
I/O
* Wake up from sleep mode when the status of the pin changes.
* External Timer/Counter input.
* General purpose I/O pin.
* Pull-high/open-drain/pull-down.
* Wake up from sleep mode when the status of the pin changes.
* Schmitt Trigger input during the programming mode
* General purpose I/O pin.
* Pull-high/open-drain/pull-down.
P60//INT
10
* Wake up from sleep mode when the status of the pin changes.
* Schmitt Trigger input during the programming mode.
This specification is subject to change without prior notice.
6
4. 1.2004 (V1.4)
ELAN [ ELAN MICROELECTRONICS CORP ]
