參數(shù)資料
型號： P83C661X2
英文描述： 80C51 8-bit microcontroller family 16KB OTP/ROM. 512B RAM low voltage (2.7 to 5.5 V). low power. high speed (30/33 MHZ). two 400KB I2C interfaces
中文描述： 80C51的8位單片機系列16KB的檢察官辦公室/光盤。 512B RAM的低電壓（2.7至5.5 V）。低功耗。高速（三十三分之三十兆赫）。 2 400KB I2C接口
文件頁數(shù)： 8/102頁
文件大?。?/td> 568K
代理商： P83C661X2
Philips Semiconductors
Product data
P8xC660X2/661X2
80C51 8-bit microcontroller family
16 KB OTP/ROM, 512B
RAM, low voltage (2.7 to 5.5 V), low power, high speed (30/33
MHz), two 400KB I
2
C interfaces
2003 Oct 02
8
MNEMONIC
NAME AND FUNCTION
TYPE
PIN NUMBER
LQFP
PLCC
ALE
2
33
27
O
Address Latch Enable:
Output pulse for latching the LOW byte of the address
during an access to external memory. In normal operation, ALE is emitted twice
every machine cycle, and can be used for external timing or clocking. Note that one
ALE pulse is skipped during each access to external data memory. ALE can be
disabled by setting SFR auxiliary.0. With this bit set, ALE will be active only during a
MOVX instruction.
PSEN
2
32
26
O
Program Store Enable:
The read strobe to external program memory. When
executing code from the external program memory, PSEN is activated twice each
machine cycle, except that two PSEN activations are skipped during each access
to external data memory. PSEN is not activated during fetches from internal
program memory.
EA
2
35
29
I
External Access Enable/Programming Supply Voltage:
EA must be externally
held LOW to enable the device to fetch code from external program memory
locations. If EA is held HIGH, the device executes from internal program memory.
The value on the EA pin is latched when RST is released and any subsequent
changes have no effect. This pin also receives the programming supply voltage
(V
PP
) during programming.
Crystal 1:
Input to the inverting oscillator amplifier and input to the internal clock
generator circuits.
XTAL1
21
15
I
XTAL2
20
14
O
Crystal 2:
Output from the inverting oscillator amplifier.
NOTE:
1. To avoid “l(fā)atch-up” effect at power-on, the voltage on any pin (other than EA) must not be higher than V
CC
+ 0.5 V or less than V
SS
– 0.5 V.
2. The pins are designed for test mode also.
相關(guān)PDF資料
PDF描述
P83C660X2 80C51 8-bit microcontroller family 16KB OTP/ROM. 512B RAM low voltage (2.7 to 5.5 V). low power. high speed (30/33 MHZ). two 400KB I2C interfaces
P87C660X2 80C51 8-bit microcontroller family 16KB OTP/ROM. 512B RAM low voltage (2.7 to 5.5 V). low power. high speed (30/33 MHZ). two 400KB I2C interfaces
P87C661X2 80C51 8-bit microcontroller family 16KB OTP/ROM. 512B RAM low voltage (2.7 to 5.5 V). low power. high speed (30/33 MHZ). two 400KB I2C interfaces
P83C748EBPN 80C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count
P83C748EBAA 80C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P83C661X2BBD 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family
P83C661X2FA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family
P83C748EBAA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count
P83C748EBDDB 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count
P83C748EBPN 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count
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