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參數(shù)資料
| 型號： | M37548G1FP |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機 |
| 文件頁數(shù)： | 47/73頁 |
| 文件大小： | 1255K |
| 代理商： | M37548G1FP |
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Rev.2.00
REJ03B0210-0200
Mar 15, 2007
Page 47 of 70
7548 Group
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Fig 63. Block diagram of internal clock generating circuit
“00”: Low-speed mode
High-speed on-chip
oscillator (HSOCO)
1/4
1/2
Timing
φ
(Internal clock)
φ
SOURCE
“10”: High-speed mode
Clock division ratio selection bits
WIT
instruction
Low-speed on-chip
oscillator (LSOCO)
1/8
“01”: Middle-speed mode
“11”: Double-speed mode
Peripheral
function clock
generation circuit
(1/1 to 1/256)
Clock selection bits
High-speed on-chip oscillator
oscillation control bit
Low-speed on-chip oscillator
oscillation control bit
1/16
Prescaler 12
Timer 1
Oscillation stabilization time set timer
after release of the STP instruction
S
Q
R
Reset
Interrupt disable flag I
Interrupt request
X
IN
/X
CIN
oscillation
control bit
Bits 0 and 1 of FSROM1: setting of the oscillation method setection bits
“00”: Clock pins not used
P2
1
/X
IN
/X
CIN
Port P2
1
control circuit
P2
0
/X
OUT
/X
COUT
Port P2
0
control circuit
“10”
“01”
“00”
It is not possible to write “1” to the low-speed on-chip
oscillator oscillation control bit if low-speed on-chip
oscillator stop has been disabled by bit 4 in FSROM2.
Also, the low-speed on-chip oscillator does not stop
even if the STP instruction is executed.
X
IN
oscillation cannot be
selected as
SOURCE
if clock pins not used is
selected.
P2
1
/X
IN
/X
CIN
Port P2
1
control circuit
P2
0
/X
OUT
/X
COUT
“11”: External clock input
Noise filter
P2
1
/X
IN
/X
CIN
P2
0
/X
OUT
/X
COUT
Rf
“10”: 32 kHz quartz-
crystal oscillation
P2
1
/X
IN
/X
CIN
P2
0
/X
OUT
/X
COUT
Rf
“01”: Ceramic or quartz-
crystal oscillation
1/1 to 1/256
Peripheral
function
(Note 2)
(Note 2)
Reset
S
Q
R
Q
S
STP instruction
STP instruction
R
Notes 1:
The oscillation circuit is built in the P2
0
/X
OUT
/X
COUT
pin and the P2
1
/X
IN
/X
CIN
pin. When the Vcc of the microcomputer
is lower than the operation lower bound voltage even if these pins are used as I/O ports, the oscillation circuit is
connected and undefined values may be output from these pins.
2:
Although a feed-back resistor exists on-chip, an external feed-back resistor may be needed depending on conditions.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M37548G1-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37548G2FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37548G2-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37548G3FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37548G3FP#U0 | 功能描述:MCU 6K ROM 256K 20-SSOP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:LPC11Uxx 核心處理器:ARM? Cortex?-M0 芯體尺寸:32-位 速度:50MHz 連通性:I²C，Microwire，SPI，SSI，SSP，UART/USART，USB 外圍設備:欠壓檢測/復位，POR，WDT 輸入/輸出數(shù):40 程序存儲器容量:96KB（96K x 8） 程序存儲器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 V 數(shù)據(jù)轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-LQFP 包裝:托盤 其它名稱:568-9587 |
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