- 您现在的位置：买卖IC网 > PDF目录367741 > P89C58UFAA1 (NXP Semiconductors N.V.) 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash PDF资料下载
参数资料
| 型号： | P89C58UFAA1 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash |
| 中文描述： | 80C51的8位单片机系列4K/8K/16K/32K闪光 |
| 文件页数： | 5/32页 |
| 文件大小： | 212K |
| 代理商： | P89C58UFAA1 |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
Philips Semiconductors
Product specification
89C51/89C52/89C54/89C58
80C51 8-bit microcontroller family
4K/8K/16K/32K Flash
1999 Oct 27
5
PIN DESCRIPTIONS
PIN NUMBER
DIP
LCC
20
40
39–32
43–36
MNEMONIC
V
SS
V
CC
P0.0–0.7
QFP
16
38
37–30
TYPE
I
I
I/O
NAME AND FUNCTION
Ground:
0 V reference.
Power Supply:
This is the power supply voltage for normal, idle, and power-down operation.
Port 0:
Port 0 is an open-drain, bidirectional I/O port. Port 0 pins that have 1s written to
them float and can be used as high-impedance inputs. Port 0 is also the multiplexed
low-order address and data bus during accesses to external program and data memory. In
this application, it uses strong internal pull-ups when emitting 1s.
22
44
P1.0–P1.7
1–8
2–9
40–44,
1–3
I/O
Port 1:
Port 1 is an 8-bit bidirectional I/O port with internal pull-ups. Port 1 pins that have 1s
written to them are pulled high by the internal pull-ups and can be used as inputs. As inputs,
port 1 pins that are externally pulled low will source current because of the internal pull-ups.
(See DC Electrical Characteristics: I
IL
). Alternate function for Port 1:
T2 (P1.0):
Timer/Counter2 external count input/clockout (see Programmable Clock-Out).
T2EX (P1.1):
Timer/Counter2 reload/capture/direction control.
Port 2:
Port 2 is an 8-bit bidirectional I/O port with internal pull-ups. Port 2 pins that have 1s
written to them are pulled high by the internal pull-ups and can be used as inputs. As inputs,
port 2 pins that are externally being pulled low will source current because of the internal
pull-ups. (See DC Electrical Characteristics: I
IL
). Port 2 emits the high-order address byte
during fetches from external program memory and during accesses to external data memory
that use 16-bit addresses (MOVX @DPTR). In this application, it uses strong internal
pull-ups when emitting 1s. During accesses to external data memory that use 8-bit addresses
(MOV @Ri), port 2 emits the contents of the P2 special function register.
Port 3:
Port 3 is an 8-bit bidirectional I/O port with internal pull-ups. Port 3 pins that have 1s
written to them are pulled high by the internal pull-ups and can be used as inputs. As inputs,
port 3 pins that are externally being pulled low will source current because of the pull-ups.
(See DC Electrical Characteristics: I
IL
). Port 3 also serves the special features of the
89C51/89C52/89C54/89C58, as listed below:
RxD (P3.0):
Serial input port
TxD (P3.1):
Serial output port
INT0 (P3.2):
External interrupt
INT1 (P3.3):
External interrupt
T0 (P3.4):
Timer 0 external input
T1 (P3.5):
Timer 1 external input
WR (P3.6):
External data memory write strobe
RD (P3.7):
External data memory read strobe
Reset:
A high on this pin for two machine cycles while the oscillator is running, resets the
device. An internal diffused resistor to V
SS
permits a power-on reset using only an external
capacitor to V
CC
.
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 at a constant rate of 1/6 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. ALE can be disabled by
setting SFR auxiliary.0. With this bit set, ALE will be active only during a MOVX instruction.
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 to the
maximum internal memory boundary. If EA is held high, the device executes from internal
program memory unless the program counter contains an address greater than 0FFFH for
4 k devices, 1FFFH for 8 k devices, 3FFFH for 16 k devices, and 7FFFH for 32 k devices.
The value on the EA pin is latched when RST is released and any subsequent changes
have no effect. This pin also receives the 12.00 V programming supply voltage (V
PP
) during
FLASH programming.
Crystal 1:
Input to the inverting oscillator amplifier and input to the internal clock
generator circuits.
Crystal 2:
Output from the inverting oscillator amplifier.
1
2
2
3
40
41
I/O
I
I/O
P2.0–P2.7
21–28
24–31
18–25
P3.0–P3.7
10–17
11,
13–19
5,
7–13
I/O
10
11
12
13
14
15
16
17
9
11
13
14
15
16
17
18
19
10
5
7
8
9
10
11
12
13
4
I
O
I
I
I
I
O
O
I
RST
ALE
30
33
27
O
PSEN
29
32
26
O
EA/V
PP
31
35
29
I
XTAL1
19
21
15
I
XTAL2
18
20
14
O
NOTE:
To avoid “latch-up” effect at power-on, the voltage on any pin (other than V
PP
) at any time must not be higher than V
CC
+ 0.5 V or
V
SS
– 0.5 V, respectively.
相关PDF资料 |
PDF描述 |
|---|---|
| P89C58UFBB1 | 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash |
| P89C61X2 | 80C51 8-bit Flash microcontroller family |
| P89C60X2 | 80C51 8-bit Flash microcontroller family |
| P89C660HBBD | 80C51 8-bit Flash microcontroller family |
| P89C660 | 80C51 8-bit Flash microcontroller family |
相关代理商/技术参数 |
参数描述 |
|---|---|
| P89C58UFAA-T | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| P89C58UFBB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| P89C58UFBB1 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/8K/16K/32K Flash |
| P89C58UFPN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| P89C58UFPN1 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/8K/16K/32K Flash |
发布紧急采购，3分钟左右您将得到回复。