參數(shù)資料
型號: MC68HCP11A1MP
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-Bit Microcontrollers
中文描述: 8-BIT, EEPROM, 3 MHz, MICROCONTROLLER, PDIP48
封裝: PLASTIC, DIP-48
文件頁數(shù): 38/45頁
文件大小: 286K
代理商: MC68HCP11A1MP
MOTOROLA
38
MC68HC11A8
MC68HC11A8TS/D
9 Pulse
Accumulator
The MC68HC11A8 has an 8-bit counter that can be configured to operate as a simple event counter or
for gated time accumulation, depending on the PAMOD bit in the PACTL register. The pulse accumu-
lator counter can be read or written at any time.
The port A bit 7 I/O pin can be configured as a clock in event counting mode, or as a gate signal to en-
able a free-running clock (E divided by 64) in gated time accumulation mode.
Figure 12 Pulse Accumulator System Block Diagram
Table 9 Pulse Accumulator Timing
Common XTAL Frequencies
8.0 MHz
2.0 MHz
500 ns
Selected Crystal
(E)
(1/E)
4.0 MHz
1.0 MHz
1000 ns
12.0 MHz
3.0 MHz
333 ns
CPU Clock
Cycle Time
Pulse Accumulator (in Gated Mode)
(E/2
6
)
(E/2
14
)
1 count —
overflow —
64.0
μ
s
16.384 ms
32.0
μ
s
8.192 ms
21.33
μ
s
5.461 ms
PULSE ACC BLOCK
P
P
P
PACTL
CONTROL
INTERNAL
DATA BUS
PACNT
8-BIT COUNTER
PA7/
PAI/
OC1
INTERRUPT
REQUESTS
P
P
TFLG2
INTERRUPT STATUS
P
P
PAOVF
PAOVI
PAIF
PAII
TMSK2
INT ENABLES
1
2
OVERFLOW
ENABLE
DISABLE
FLAG SETTING
CLOCK
PAI EDGE
PAEN
PAEN
2
:
1
MUX
OUTPUT
BUFFER
INPUT BUFFER
AND
EDGE DETECTOR
FROM
MAIN TIMER
OC1
DATA
BUS
MCU PIN
E
÷
64 CLOCK
(FROM MAIN TIMER)
FROM
DDRA7
相關(guān)PDF資料
PDF描述
MC68HCP11A1P NPN Epitaxial Silicon Transistor
MC68HCP11A1VP 8-Bit Microcontrollers
MC68HCP11A1FN 8-Bit Microcontrollers
MC68HSC705C8ACFS M68HC05 MICROCONTROLLERS
MC705C8ACFNR2 M68HC05 MICROCONTROLLERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HCP11E0CP2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HCP11E0FN 功能描述:MICROCONTROLLER MCU 8ADC 3MHC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC11 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN,SCI,SPI 外圍設(shè)備:POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):21 程序存儲器容量:40KB(20K x 16) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HCP11E0FNE 功能描述:8位微控制器 -MCU 8B MCU 512RAM COP A/D RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68HCP11E1CFNE2 功能描述:8位微控制器 -MCU 8B MCU 512 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68HCP11E1CFNE3 功能描述:8位微控制器 -MCU 8B MCU 512 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT