M38227ECFP Renesas Electronics America, M38227ECFP Datasheet - Page 24

• 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: -

Fig. 17 Port block diagram (3)
( 1 3 ) P o r t P 5
( 1 5 ) P o r t P 7
( 1 7 ) C O M
D a t a b u s
D a t a b u s
T
O U T
0
o u t p u t c o n t r o l b i t
– C O M
V
V
V
6
0
L3
L2
L1
T i m e r o u t p u t
D i r e c t i o n r e g i s t e r
Port X
P o r t l a t c h
D i r e c t i o n r e g i s t e r
3
P o r t l a t c h
C
switch bit
P o r t X
C
T h e g a t e i n p u t s i g n a l o f e a c h t r a n s i s t o r i s
c o n t r o l l e d b y t h e L C D d u t y r a t i o a n d t h e
b i a s v a l u e .
s w i t c h b i t + P u l l - u p c o n t r o l
P u l - u p c o n t r o l
P o r t P 7
Oscillation circuit
P o r t X
1
C
s w i t c h b i t
Data bus
D a t a b u s
( 1 8 ) S E G
( 1 4 ) P o r t P 6
( 1 6 ) P o r t P 7
V
V
L 1
L2
/ V
/V
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Port X
0
L3
S S
– S E G
D i r e c t i o n r e g i s t e r
1
P o r t l a t c h
D i r e c t i o n r e g i s t e r
C
Sub-clock generating circuit input
P o r t l a t c h
switch bit
1 1
P o r t X
MITSUBISHI MICROCOMPUTERS
A-D conversion input
C
s w i t c h b i t + P u l l - u p c o n t r o l
The voltage applied to the sources of
P-channel and N-channel transistors
is the controlled voltage by the bias
value.
A n a l o g i n p u t p i n s e l e c t i o n b i t
Pull-up control
3822 Group
21