參數(shù)資料
型號(hào)： TS87C52X2-MIJD
英文描述： 8-bit CMOS Microcontroller 0-60 MHz
中文描述： 8位CMOS微控制器0-60兆赫
文件頁(yè)數(shù)： 6/54頁(yè)
文件大?。?/td> 626K
代理商： TS87C52X2-MIJD
6
Rev. B - Jan. 25, 1999
Preliminary
TS80C52X2
MNEMONIC
PIN NUMBER
33
TYPE
O (I)
NAME AND FUNCTION
ALE/PROG
30
27
Address Latch Enable/Program Pulse:
Output pulse for latching the low byte
of the address during an access to external memory. In normal operation, ALE
is emitted at a constant rate of 1/6 (1/3 in X2 mode) the oscillator frequency,
and can be used for external timing or clocking. Note that one ALE pulse is
skipped during each access to external data memory. This pin is also the program
pulse input (PROG) during EPROM programming. ALE can be disabled by
setting SFR’s AUXR.0 bit. With this bit set, ALE will be inactive during internal
fetches.
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.
External Access Enable/Programming Supply Voltage:
EA must be externally
held low to enable the device to fetch code from external program memory
locations 0000H and 3FFFH (RB) or 7FFFH (RC), or FFFFH (RD). If EA is
held high, the device executes from internal program memory unless the program
counter contains an address greater than 3FFFH (RB) or 7FFFH (RC) EA must
be held low for ROMless devices. This pin also receives the 12.75V programming
supply voltage (V
PP
) during EPROM programming. If security level 1 is
programmed, EA will be internally latched on Reset.
Crystal 1:
Input to the inverting oscillator amplifier and input to the internal
clock generator circuits.
Crystal 2:
Output from the inverting oscillator amplifier
PSEN
29
32
26
O
EA/V
PP
31
35
29
I
XTAL1
19
21
15
I
XTAL2
18
20
14
O
Table 3. Pin Description for 40/44 pin packages
相關(guān)PDF資料
PDF描述
TS87C52X2-MIJR 8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-MIAB 8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-MIAD 8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-MIAR 8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-LIBB 8-bit CMOS Microcontroller 0-60 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS87C52X2-MIJR 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-MIKB 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-MIKD 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-MIKR 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-SLSUM 制造商:Atmel Corporation 功能描述:MCU 8BIT TS87 CISC 8KB EPROM 44PLCC - Rail/Tube
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