M37542F8FP Renesas Electronics America, M37542F8FP Datasheet - Page 26

• Manufacturer Part Number: M37542F8FP
• Description: IC 740 MCU FLASH 32K 36SSOP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M37542F8FP

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SIO, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 29
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 36-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

7542 Group
Table 7 Termination of unused pins
Rev.3.03
REJ03B0006-0303
Termination of unused pins
• Termination of common pins
I/O ports:
Output ports: Open.
Input ports: If the input level become unstable, through current
P0
P0
P0
P0
P0
P0
P0
P0
P1
P1
P1
P1
P1
P2
P3
P3
P3
P3
P3
P3
P3
P3
V
X
X
REF
IN
OUT
0
1
2
3
4
5
6
7
0
1
2
3
4
0
0
1
2
3
4
5
6
7
/TxD
/CAP
/CMP
/CMP
/TX
/RxD
/TxD
/S
/S
/RxD
/S
/S
/CNTR
/AN
/CAP
/CMP
/CMP
/INT
/INT
/INT
CLK2
RDY2
CLK1
RDY1
OUT
0
1
1
0
Pin
1
2
–P2
2
1
0
1
0
1
2
3
/CAP
0
7
Select an input port or an output port and follow
each processing method.
flow to an input circuit, and the power supply current
may increase.
Jul 11, 2008
/AN
0
7
I/O port
Connect to Vss.
When only on-chip
oscillator is used, connect
to V
When external clock is
input or when on-chip
oscillator is used, open.
CC
Termination 1
(recommend)
through a resistor.
Page 24 of 117
When selecting CAP function, per-
form termination of input port.
When selecting CMP
perform termination of output port.
When selecting CMP
perform termination of output port.
When selecting TX
perform termination of output port.
When selecting RxD
perform termination of input port.
When selecting TxD
perform termination of output port.
When selecting external clock input,
perform termination of output port.
When selecting S
perform termination of output port.
When selecting RxD
perform termination of input port.
When selecting TxD
perform termination of output port.
When selecting external clock input,
perform termination of input port.
When selecting S
perform termination of output port.
When selecting CNTR input function,
perform termination of input port.
When selecting AN function, per-
form termination of input port.
When selecting CAP function, per-
form termination of input port.
When selecting CMP
perform termination of output port.
When selecting CMP
perform termination of output port.
When selecting INT function, per-
form termination of input port.
When selecting INT function, per-
form termination of input port.
When selecting INT function, per-
form termination of input port.
Termination 2
-
-
-
-
-
RDY2
RDY1
OUT
2
1
2
1
0
1
2
3
function,
function,
function,
function,
function,
function,
function,
function,
function,
function,
function,
When selecting internal clock output,
perform termination of output port.
When selecting CAP function, per-
form termination of input port.
When selecting internal clock output,
perform termination of output port.
When selecting CNTR output function,
perform termination of output port.
Especially, when expecting low consumption current
(at STP or WIT instruction execution etc.), pull-up or
pull-down input ports to prevent through current
(built-in resistor can be used).
We recommend processing unused pins through a
resistor which can secure I
Because, when an I/O port or a pin which have an
output function is selected as an input port, it may
operate as an output port by incorrect operation etc.
Termination 3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
OH(avg)
or I
When selecting
key-on wakeup
f u n c t i o n , p e r -
form termination
of input port.
Termination 4
OL(avg)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
.