UPD78F9202MA-CAC-A Renesas Electronics America, UPD78F9202MA-CAC-A Datasheet - Page 148
UPD78F9202MA-CAC-A
Manufacturer Part Number
UPD78F9202MA-CAC-A
Description
MCU 8BIT 4KB FLASH 128B RAM
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet
1.UPD78F9500MA-CAC-A.pdf
(342 pages)
Specifications of UPD78F9202MA-CAC-A
Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
7
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
UPD78F9202MA-CAC-A
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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8.1
signal is generated.
For details of RESF, see CHAPTER 12 RESET FUNCTION.
low-speed internal oscillator as shown in Table 8-2.
146
The watchdog timer is used to detect an inadvertent program loop. If a program loop is detected, an internal reset
When a reset occurs due to the watchdog timer, bit 4 (WDTRF) of the reset control flag register (RESF) is set to 1.
The operation mode of the watchdog timer (WDT) is switched according to the option byte setting of the on-chip
Functions of Watchdog Timer
Remarks 1. f
2
2
2
2
2
2
2
2
During Low-Speed Internal oscillation Clock Operation
11
12
13
14
15
16
17
18
/f
/f
/f
/f
/f
/f
/f
/f
RL
RL
RL
RL
RL
RL
RL
RL
(4.27 ms)
(8.53 ms)
(17.07 ms)
(34.13 ms)
(68.27 ms)
(136.53 ms)
(273.07 ms)
(546.13 ms)
2. f
3. Figures in parentheses apply to operation at f
RL
X
: System clock oscillation frequency
: Low-speed internal oscillation clock oscillation frequency
Table 8-1. Loop Detection Time of Watchdog Timer
CHAPTER 8 WATCHDOG TIMER
User’s Manual U18172EJ3V0UD
Loop Detection Time
2
2
2
2
2
2
2
2
13
14
15
16
17
18
19
20
/f
/f
/f
/f
/f
/f
/f
/f
X
X
X
X
X
X
X
X
(819.2 s)
(1.64 ms)
(3.28 ms)
(6.55 ms)
(13.11 ms)
(26.21 ms)
(52.43 ms)
(104.86 ms)
RL
During System Clock Operation
= 480 kHz (MAX.), f
X
= 10 MHz.
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