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零件编号 | P80C51BH | ||
描述 | (P80C31BH / P80C51BH) CHMOS Single-Chip 8-Bit Microcontroller | ||
制造商 | Intel | ||
LOGO | |||
1 Page
87C51/80C51BH/80C31BH
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Commercial/Express
87C51/80C51BH/80C51BHP/80C31BH
*See Table 1 for Proliferation Options
■ High Performance CHMOS EPROM
■ 24 MHz Operation
■ Improved Quick-Pulse Programming
Algorithm
■ 3-Level Program Memory Lock
■ Boolean Processor
■ 128-Byte Data RAM
■ 32 Programmable I/O Lines
■ Two 16-Bit Timer/Counters
■ Extended Temperature Range
(-40°C to +85 °C)
■ 5 Interrupt Sources
■ Programmable Serial Port
■ TTL- and CMOS-Compatible Logic
Levels
■ 64K External Program Memory Space
■ 64K External Data Memory Space
■ ONCE Mode Facilitates System Testing
■ Power Control Modes
• Idle
• Power Down
MEMORY ORGANIZATION
PROGRAM MEMORY: Up to 4 Kbytes of the program memory can reside on-chip (except 80C31BH). In
addition the device can address up to 64K of program memory external to the chip.
DATA MEMORY: This microcontroller has a 128 x 8 on-chip RAM. In addition it can address up to 64 Kbytes of
external data memory.
The Intel 87C51/80C51BH/80C31BH is a single-chip control-oriented microcontroller which is fabricated on
Intel's reliable CHMOS III-E technology. Being a member of the MCS® 51 controller family, the
87C51/80C51BH/80C31BH uses the same powerful instruction set, has the same architecture, and is pin-for-
pin compatible with the existing MCS 51 controller family of products.
The 80C51BHP is identical to the 80C51BH. When ordering the 80C51BHP, customers must submit the 64
byte encryption table together with the ROM code. Lock bit 1 will be set to enable the internal ROM code
protection and at the same time allows code verification.
The extremely low operating power, along with the two reduced power modes, Idle and Power Down, make
this part very suitable for low power applications. The Idle mode freezes the CPU while allowing the RAM,
timer/counters, serial port and interrupt system to continue functioning. The Power Down mode saves the
RAM contents but freezes the oscillator, causing all other chip functions to be inoperative.
For the remainder of this document, the 87C51, 80C51BH, and 80C31BH will be referred to as the 87C51/BH,
unless information applies to a specific device.
* Other brands and names are the property of their respective owners.
Information in this document is provided in connection with Intel products. Intel assumes no liability whatsoever, including infringement of any patent or
copyright, for sale and use of Intel products except as provided in Intel's Terms and Conditions of Sale for such products. Intel retains the right to make
changes to these specifications at any time, without notice. Microcomputer Products may have minor variations to this specification known as errata.
COPYRIGHT © INTEL CORPORATION, 2004
July 2004
Order Number: 272335-004
87C51/80C51BH/80C31BH
ABSOLUTE MAXIMUM RATINGS:
Ambient Temperature Under Bias.... - 4 0° C to +85°C
Storage Temperature..................... - 65° C to +150°C
Voltage on EA/V PP Pin to VSS.............. 0V to +13.0V
Voltage on Any Other Pin to VSS........ - 0.5V to + 6.5V
Maximum IOL per I/O Pin...................................15 mA
Power Dissipation................................................1.5W
(Based on package heat transfer limitations, not de-
vice power consumption.)
NOTICE: This data sheet contains preliminary infor-
mation on new products in production. It is valid for
the devices indicated in the revision history. The
specifications are subject to change without notice.
*WARNING: Stressing the device beyond the ``Absolute
Maximum Ratings'' may cause permanent damage.
These are stress ratings only. Operation beyond the
``Operating Conditions'' is not recommended and ex-
tended exposure beyond the ``Operating Conditions''
may affect device reliability.
OPERATING CONDITIONS
Symbol
TA
VCC
fOSC
Description
Ambient Temperature Under Bias
Commercial
Express-40
Supply Voltage
Oscillator Frequency
87C51/BH
87C51-1/BH-1
87C51-2/BH-2
87C51-24/BH-24
Min
0
4.5
3.5
3.5
0.5
3.5
Max
+70
+85
5.5
12
16
12
24
Unit
°C
°C
V
MHz
DC CHARACTERISTICS (Over Operating Conditions)
All parameter values apply to all devices unless otherwise indicated.
Symbol Parameter
Min
Typ(1) Max
Unit Test Conditions
VIL
VIL1
VIH
VIH1
VOL
Input Low Voltage
Commercial
Express
Input Low Voltage EA
Commercial
Express
Input High Voltage
(Except XTAL1, RST)
Commercial
Express
Input High Voltage
(XTAL1, RST)
Commercial
Express
Output Low Voltage(6)
(Ports 1, 2, 3)
-0.5
-0.5
0
-0.5
0.2 VCC + 0.9
0.2 VCC + 1
0.7 VCC
0.7 VCC + 0.1
0.2 VCC - 0.1
0.2 VCC - 0.15
0.2 VCC -0.3
0.2 VCC -0.35
V
V
V
V
VCC +0.5
VCC +0.5
V
V
VCC +0.5
VCC +0.5
0.3
0.45
1.0
V
V
V IOL = 100 mA(2)
V IOL = 1.6 mA(2)
V IOL = 3.5 mA(2)
8
87C51/80C51BH/80C31BH
SERIAL PORT TIMING-SHIFT REGISTER MODE
Symbol
Parameter
12 MHz
Oscillator
24 MHz
Oscillator
Variable Oscillator
Units
Min Max Min Max
Min
Max
TXLXL Serial Port Clock
Cycle Time
1.0
0.500
12TCLCL
ms
TQVXH Output Data Setup 700
to Clock Rising Edge
284 10TCLCLb133
ns
TXHQX
Output Data Hold
After Clock
Rising Edge
87C51/BH
87C51-24/BH-24
50
2TCLCLb117
34 2TCLCLb34
ns
TXHDX Input Data Hold
After Clock
Rising Edge
0
0
0
ns
TXHDV Clock Rising Edge
to Input Data Valid
700 283
10TCLCLb133 ns
SHIFT REGISTER MODE TIMING WAVEFORMS
AC TESTING INPUT, OUTPUT WAVEFORMS
FLOAT WAVEFORMS
272335 ±18
272335 ±19
AC inputs during testing are driven at VCC b 0.5 for a Logic ``1''
and 0.45V for a Logic ``0.'' Timing measurements are made at VIH
min for a Logic ``1'' and VIL max for a Logic ``0''.
272335 ±20
For timing purposes a port pin is no longer floating when a
100 mV change from load voltage occurs, and begins to float
when a 100 mV change from the loaded VOH/V OL level occurs.
IOL/I OH e g20 mA.
16
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页数 | 21 页 | ||
下载 | [ P80C51BH.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
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