- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367812 > PCD3745 (NXP Semiconductors N.V.) 8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock PDF資料下載
參數(shù)資料
| 型號(hào)： | PCD3745 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock |
| 中文描述： | 8位微控制器4.5字節(jié)OTP存儲(chǔ)器和32kHz實(shí)時(shí)時(shí)鐘 |
| 文件頁(yè)數(shù)： | 9/32頁(yè) |
| 文件大?。?/td> | 156K |
| 代理商： | PCD3745 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)當(dāng)前第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)
1999 Feb 02
9
Philips Semiconductors
Product specification
8-bit microcontroller with 4.5 kbytes OTP
memory and 32 kHz real-time clock
PCD3745A
6.4
Clock Control Register (CLCR)
Table 3
Clock Control Register (address 20H)
Table 4
Description of CLCR bits
6.5
Frequency Adjustment Register (FAR)
Table 5
Frequency Adjustment Register (address 21H)
Table 6
Description of FAR bits
7
6
5
4
3
2
1
0
SITS
TST2
TST1
ERCO
RUN
ITS
CIF
ECI
BIT
SYMBOL
DESCRIPTION
7
SITS
Second Interrupt Time Select.
If SITS = 1 and ITS = 1, then the interrupt time is
1.5 seconds.
Test 2 input.
This is a test bit and must be fixed at zero by user software.
Test 1 input.
This is a test bit and must be fixed at zero by user software.
Enable 16 kHz Clock Output.
If ERCO = 0, then P1.7/RCO is a port line. If ERCO = 1,
then P1.7/RCO is a 16 kHz clock output. The port instructions for P1.7/RCO are not
inhibited and therefore the state of both the port line and flip-flop may be read in and the
port flip-flop may be written to by port instructions.
Clock Run/Stop.
If RUN = 0, then the 32 kHz oscillator is stopped and the divider chain
is reset. If RUN = 1, then the 32 kHz oscillator and the divider chain are running.
Interrupt Time Select.
If ITS = 1 and SITS = 0, then the interrupt time is one second. If
ITS = 0 and SITS = X, then the interrupt time is one minute.
Clock Interrupt Flag.
Set by hardware, if RTC divider chain overflows (every second,
1.5 second or minute depending on ITS) or by software. Reset: by software.
Enable Clock Interrupt.
If ECI = 0, the RTC interrupt is disabled. If ECI = 1, the RTC
interrupt is enabled.
6
5
4
TST2
TST1
ERCO
3
RUN
2
ITS
1
CIF
0
ECI
7
6
5
4
3
2
1
0
FAR7
FAR6
FAR5
FAR4
FAR3
FAR2
FAR1
FAR0
BIT
SYMBOL
DESCRIPTION
7
6
5
4
3
2
1
0
FAR7
FAR6
FAR5
FAR4
FAR3
FAR2
FAR1
FAR0
The state of these 8-bits determine the frequency adjustment value for the real-time
clock section; see Table 7.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCD3745A | 8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock |
| PCD3745AH | 8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock |
| PCD3745AP | 8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock |
| PCD3745AT | 8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock |
| PCD3755A | 8-bit microcontrollers with DTMF generator, 8 kbytes OTP and 128 bytes EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCD3745A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock |
| PCD3745AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock |
| PCD3745AHBD-S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| PCD3745AP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock |
| PCD3745AT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with 4.5 kbytes OTP memory and 32 kHz real-time clock |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。