LC66E516 View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LC66E516 Datasheet PDF : 18 Pages
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LC66E516
3. Option for selecting watchdog timer function
This option permits the user to select the watchdog timer function. This function could be helpful in detecting a
timeout error from your user application program.
4. Option for specifying port output type
i) This option permits the user to select a desired port output type of the following ports from the two output types listed
in the table below. Please note that port output types can be specified in bit units.
Ports: P0, P1, P2, P3 (P33/HOLD not included), P4, P5, P6, P7, P9, PA, PB, and PC
Option name
1. Open drain output
type
Selected output circuit type
Condition
Ports P7, PA and PB are provided exclusively for output operation.
Ports P2, P3, P6 and P9 employ Schmitt trigger input.
2. Pull-up transistor
output type
Ports P7, PA and PB are provided exclusively for output operation.
Ports P2, P3, P6 and P9 employ Schmitt trigger input.
The Pch type MOS transistor can act as either a pull-up resistor (for
Pu MOS output circuit) or an output transistor (CMOS output circuit),
which depends on its driving capability.
CMOS output type: P2, P3, P6, P9 and PC.
Pu MOS output: P0, P1, P4, P5, P7, PA and PB.
ii) The output type of P8 can be selected from the following two options. Please note that the output types for the port pins
can be specified in bit units.
Option name
1. Option drain output
type (Pch OD)
Selected output circuit type
Condition
2. Pull-down resistor
output type
iii) Comparator input of the PD and tristate input of the PE can be specified in your user application program.
User option specification
To select desired user options, you must write appropriate data into the user option specification area in the on-chip
EPROM. The user option specification will be discussed in detail on the following pages.
No.2928–8/18
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