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Intel Corporation
Intel Corporation

80C51BHP Datasheet Preview

80C51BHP Datasheet

CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

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80C51BHP pdf
87C51 80C51BH 80C31BH
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Commercial Express
87C51 80C51BH 80C51BHP 80C31BH
See Table 1 for Proliferation Options
Y High Performance CHMOS EPROM
Y 24 MHz Operation
Y Improved Quick-Pulse Programming
Algorithm
Y 3-Level Program Memory Lock
Y Boolean Processor
Y 128-Byte Data RAM
Y 32 Programmable I O Lines
Y Two 16-Bit Timer Counters
Y Extended Temperature Range
(b40 C to a85 C)
Y 5 Interrupt Sources
Y Programmable Serial Port
Y TTL- and CMOS-Compatible Logic
Levels
Y 64K External Program Memory Space
Y 64K External Data Memory Space
Y ONCE Mode Facilitates System Testing
Y 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 1995
October 1995
Order Number 272335-003




Intel Corporation
Intel Corporation

80C51BHP Datasheet Preview

80C51BHP Datasheet

CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

No Preview Available !

80C51BHP pdf
87C51 80C51BH 80C31BH
80C31BH
80C51BH
80C51BHP
87C51
Table 1 Proliferation Options
Standard
-1
XX
XX
XX
XX
NOTES
3 5 MHz to 12 MHz VCC e 5V g20%
-1 3 5 MHz to 16 MHz VCC e 5V g20%
-2 0 5 MHz to 12 MHz VCC e 5V g20%
-24 3 5 MHz to 24 MHz VCC e 5V g20%
-2
X
X
X
X
-24
X
X
X
X
Figure 1 87C51 BH Block Diagram
272335 – 1
2




Intel Corporation
Intel Corporation

80C51BHP Datasheet Preview

80C51BHP Datasheet

CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

No Preview Available !

80C51BHP pdf
87C51 80C51BH 80C31BH
PROCESS INFORMATION
The 87C51 BH is manufactured on the CHMOS III-E
process Additional process and reliability informa-
tion is available in Intel’s Components Quality and
Reliability Handbook Order No 210997
PACKAGES
Part
87C51 BH
Prefix
P
D
N
S
Package Type
40-Pin Plastic
DIP (OTP)
40-Pin CERDIP
(EPROM)
44-Pin PLCC (OTP)
44-Pin QFP (OTP)
DIP
272335 – 2
PLCC
272335 – 3
Do not connect reserved pins
QFP
Figure 2 Pin Connections
272335 – 4
3




Part Number 80C51BHP
Description CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Maker Intel Corporation
Total Page 21 Pages
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