參數(shù)資料
型號: UPD78F9222CS-CAC-A
廠商: Renesas Electronics America
文件頁數(shù): 34/125頁
文件大?。?/td> 0K
描述: MCU 8BIT 4KB FLASH 20PIN
標準包裝: 400
系列: 78K0S/Kx1+
核心處理器: 78K0S
芯體尺寸: 8-位
速度: 10MHz
連通性: LIN,UART/USART
外圍設備: LVD,POR,PWM,WDT
輸入/輸出數(shù): 15
程序存儲器容量: 4KB(4K x 8)
程序存儲器類型: 閃存
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 5.5 V
數(shù)據(jù)轉換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-DIP(0.300",7.62mm)
包裝: 托盤
User’s Manual U16898EJ6V0UD
14
CHAPTER 1 OVERVIEW
1.1 Features
O 78K0S CPU core
O ROM and RAM capacities
Item
Part number
Program Memory (Flash Memory)
Memory (Internal High-Speed RAM)
μPD78F9221
2 KB
128 bytes
μPD78F9222
4 KB
μPD78F9224
8 KB
256 bytes
O Minimum instruction execution time: 0.2
μs (with 10 MHz@4.0 to 5.5 V operation)
O Clock
High-speed system clock … Selected from the following three sources
- Ceramic/crystal resonator:
2 to 10 MHz (Standard product, (A) grade product)
2 to 8 MHz ((A2) grade product)
- External clock:
2 to 10 MHz (Standard product, (A) grade product)
2 to 8 MHz ((A2) grade product)
- High-speed internal oscillator:
8 MHz
±3% (10 to +80°C),
8 MHz
±5% (Standard product, (A) grade product: 40 to +85°C, (A2)
grade product:
40 to +125°C)
Low-speed internal oscillator 240 kHz (TYP.) … Watchdog timer, timer clock in intermittent operation
O I/O ports: 17 (CMOS I/O: 15, CMOS input: 1, CMOS output: 1)
O Timer: 4 channels
16-bit timer/event counter: 1 channel … Timer output × 1, capture input × 2
8-bit timer:
2 channels … PWM output
× 1
Watchdog timer:
1 channel … Operable with low-speed internal oscillation clock
O Serial interface: UART (LIN (Local Interconnect Network) bus supported) 1 channel
O 10-bit resolution A/D converter: 4 channels
O On-chip power-on-clear (POC) circuit (A reset is automatically generated when the voltage drops to 2.1 V (TYP.)
or below)
O On-chip low voltage detector (LVI) circuit (An interrupt/reset (selectable) is generated when the detection voltage
is reached)
Detection voltage: Selectable from ten levels between 2.35 and 4.3 V
O Single-power-supply flash memory
Flash self programming enabled
Software protection function: Protected from outside party copying (no flash reading command)
Time required for writing by dedicated flash memory programmer: Approximately 3 seconds (4 KB)
Flash programming on mass production lines supported
O Safety function
Watchdog timer operated by clock independent from CPU
… A hang-up can be detected even if the system clock stops
Supply voltage drop detectable by LVI
… Appropriate processing can be executed before the supply voltage drops below the operation voltage
Equipped with option byte function
… Important system operation settings set in hardware
<R>
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