M38513E4FP#U0 Renesas Electronics America, M38513E4FP#U0 Datasheet - Page 43

• Manufacturer Part Number: M38513E4FP#U0
• Description: IC 740 MCU ROM 16K 42SSOP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M38513E4FP#U0

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SIO, UART/USART
• Peripherals: PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 42-SSOP
• Package: 42SSOP
• Family Name: 740
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 34
• Interface Type: I2C-BUS
• On-chip Adc: 5-chx10-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

3851 Group
Fig. 42 Structure of PWM control register
Fig. 43 PWM output timing when PWM register or PWM prescaler is changed
The PWM starts after the PWM function enable bit is set to enable and “L” level is output from the PWM pin.
The length of this “L” level output is as follows:
Rev.1.01
Note
b 7
PWM output
PWM prescaler
write signal
2 • f(X
PWM register
write signal
Oct 15, 2003
f(X
n+1
n+1
(Built-in 24 KB or more ROM)
IN
IN
)
When the contents of the PWM register or PWM prescaler have changed, the PWM
output will change from the next period after the change.
)
sec
sec
b 0
P W M c o n t r o l r e g i s t e r
( P W M C O N : a d d r e s s 0 0 1 D
P W M f u n c t i o n e n a b l e b i t
C o u n t s o u r c e s e l e c t i o n b i t
N o t u s e d ( r e t u r n “ 0 ” w h e n r e a d )
page 41 of 89
0 : P W M d i s a b l e d
1 : P W M e n a b l e d
0 : f ( X
1 : f ( X
(Count source selection bit = 0, where n is the value set in the prescaler)
(Count source selection bit = 1, where n is the value set in the prescaler)
I N
I N
) ( f ( X
) / 2 ( f ( X
C I N
A
C I N
) a t l o w - s p e e d m o d e )
) / 2 a t l o w - s p e e d m o d e )
T
1 6
)
(Changes “H” term from “A” to “B”.)
(Changes PWM period from “T” to “T2”.)
B
T
C
T2
B
T
=
T2
C