M37516F8HP Renesas Electronics America, M37516F8HP Datasheet - Page 46

• Manufacturer Part Number: M37516F8HP
• Description: IC 740 MCU FLASH 32K 48QFP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M37516F8HP

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: PWM, WDT
• Number Of I /o: 38
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

7516 Group
RESET CIRCUIT
To reset the microcomputer, RESET pin must be held at an “L”
level for 20 cycles or more of X
to an “H” level (the power source voltage must be between 2.7 V
and 5.5 V, and the oscillation must be stable), reset is released.
After the reset is completed, the program starts from the address
contained in address FFFD
FFFC
less than 0.54 V for V
Fig. 50 Reset sequence
Rev.1.01
16
(low-order byte). Make sure that the reset input voltage is
RESET
R E S E T
Address
D a t a
S Y N C
X
I N
Jul 01, 2003
O U T
CC
of 2.7 V.
X
page 44 of 89
I N
16
: 8 t o 1 3 c l o c k c y c l e s
IN
. Then the RESET pin is returned
(high-order byte) and address
?
?
?
N o t e s
? ?
1 : T h e f r e q u e n c y r e l a t i o n o f f ( X
2 : T h e q u e s t i o n m a r k s ( ? ) i n d i c a t e a n u n d e f i n e d s t a t e t h a t d e p e n d s o n t h e p r e v i o u s s t a t e .
3 : A l l s i g n a l s e x c e p t X
? ?
?
?
Fig. 49 Reset circuit example
I N
?
a n d
R E S E T
FFFC
R E S E T
R E S E T
I N
) a n d f ( ) i s f ( X
AD
a r e i n t e r n a l s .
L
FFFD
V
V
C C
C C
AD
I N
) = 8
P o w e r s o u r c e
v o l t a g e
Reset input
voltage
H
A D
•
0V
0V
N o t e : R e s e t r e l e a s e v o l t a g e ; V c c = 2 . 7 V
f ( ) .
H
,
L
Reset address from the vector table.
P o w e r s o u r c e
v o l t a g e d e t e c t i o n
c i r c u i t
P o w e r o n
( N o t e )
0 . 2 V
C C