M38227ECFP Renesas Electronics America, M38227ECFP Datasheet - Page 7

• Manufacturer Part Number: M38227ECFP
• Description: IC 740 MCU EPROM 48K 80QFP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M38227ECFP

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SIO, UART/USART
• Peripherals: LCD
• Number Of I /o: 49
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

4
PIN DESCRIPTION
Table 1 Pin description (1)
V
V
AV
RESET
X
X
V
COM
SEG
P0
P0
P1
P1
P2
P3
P3
CC
REF
IN
OUT
L1
4
7
0
7
0
7
0
SS
/SEG
/SEG
–V
/SEG
/SEG
/SEG
/SEG
, V
0
– P2
Pin
0
–SEG
–COM
L3
SS
12
15
16
23
24
31
7
–
11
–
–
3
Power source
Analog refer-
ence voltage
Analog power
source
Reset input
Clock input
Clock output
LCD power
source
Common output
Segment output
I/O port P0
I/O port P1
I/O port P2
Input port P3
Name
•Apply voltage of power source to V
•Reference voltage input pin for A-D converter.
•GND input pin for A-D converter.
•Connect to V
•Reset input pin for active “L”.
•Input and output pins for the main clock generating circuit.
•Feedback resistor is built in between X
•Connect a ceramic resonator or a quartz-crystal oscillator between the X
•If an external clock is used, connect the clock source to the X
•Input 0 – V
•LCD common output pins.
•COM
•COM
•LCD segment output pins.
•8-bit output port.
•CMOS compatible input level.
•CMOS 3-state output structure.
•I/O direction register allows each port to be individually
•Pull-down control is enabled.
•8-bit I/O port.
•CMOS compatible input level.
•CMOS 3-state output structure.
•I/O direction register allows each pin to be individually
•Pull-up control is enabled.
•4-bit input port.
•CMOS compatible input level.
•Pull-down control is enabled.
•This clock is used as the oscillating source of system clock.
•Input 0
mended operating conditions”).
the oscillation frequency.
programmed as either input or output.
programmed as either input or output.
2
3
and COM
is not used at 1/3 duty ratio.
V
L3
L1
SS
voltage to LCD.
.
V
3
L2
are not used at 1/2 duty ratio.
V
L3
Function
V
CC
voltage.
CC
IN
, and 0 V to V
pin and X
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
OUT
SS
pin.
. (For the limits of V
MITSUBISHI MICROCOMPUTERS
•LCD segment output pins
•Key input (key-on wake-up) interrupt
•LCD segment output pins
input pins
IN
pin and leave the X
Function except a port function
IN
and X
3822 Group
CC
OUT
, refer to “Recom-
OUT
pins to set
pin open.