N80C251SB16SF87 Intel, N80C251SB16SF87 Datasheet
N80C251SB16SF87
Specifications of N80C251SB16SF87
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N80C251SB16SF87 Summary of contents
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... Page Mode Fast MCS 251 Instruction Pipeline A member of the Intel family of 8-bit MCS 251 microcontrollers, the 8XC251SA/SB/SP/SQ is binary-code compatible with MCS 51 microcontrollers and pin compatible with 40-pin PDIP and 44-pin PLCC MCS 51 microcontrollers. MCS 251 microcontrollers feature an enriched instruction set, linear addressing, and efficient C-language support ...
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... Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life saving, or life sustaining applications. ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER System Bus and I/O Ports P0.7:0 P2.7:0 OTPROM/ROM Port 0 Port 2 Drivers Drivers 16 Kbytes Memory Data (16) Memory Address (16) Bus Interface Code Bus (16) Code Address (24) Instruction Sequencer SRC1 (8) SRC2 (8) ...
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... XX Description Commercial operating temperature range (0°C to 70°C) with Intel standard burn-in. T Express operating temperature range (-40°C to 85°C) with Intel standard burn-in. N 44-pin Plastic Leaded Chip Carrier (PLCC) P 40-pin Plastic Dual In-line Package (PDIP) C 40-pin Ceramic Dual In-line Package (Ceramic DIP) ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER Table 2 lists the proliferation options. See Figure 2 for the 8XC251SA/SB/SP/SQ family nomenclature. . 80C251SB16 80C251SQ16 83C251SA16 83C251SB16 83C251SP16 83C251SQ16 87C251SA16 87C251SB16 87C251SP16 87C251SQ16 Table 3 lists the 8XC251SA/SB/SP/SQ packages. Pkg ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER 2.0 PINOUT P1.5 / CEX2 P1.6 / CEX3 / WAIT# P1.7 / CEX4 / A17 / WCLK P3.0 / RXD P3.1 / TXD P3.2 / INT0# P3.3 / INT1# Figure 3. 8XC251SA/SB/SP/SQ 44-pin PLCC Package 6 ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER P1 P1.1 / T2EX P1.2 / ECI P1.3 / CEX0 P1.4 / CEX1 P1.5 / CEX2 P1.6 / CEX3 / WAIT# P1.7 / CEX4 / A17 / WCLK RST P3.0 / RXD P3.1 / ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER Table 4. 8XC251SA/SB/SP/SQ Pin Assignment PLCC DIP Name P1.0/ P1.1/T2EX 4 3 P1.2/ECI 5 4 P1.3/CEX0 6 5 P1.4/CEX1 7 6 P1.5/CEX2 8 7 P1.6/CEX3/WAIT P1.7/CEX4/A17/WCLK ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER Table 5. 8XC251SA/SB/SP/SQ PLCC/DIP Pin Assignments Arranged by Functional Category Address & Data Name PLCC AD0/P0.0 43 AD1/P0.1 42 AD2/P0.2 41 AD3/P0.3 40 AD4/P0.4 39 AD5/P0.5 38 AD6/P0.6 37 AD7/P0.7 36 A8/P2.0 24 A9/P2.1 25 A10/P2.2 ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER 3.0 SIGNALS Signal Type Name A17 O 18th Address Bit (A17). Output to memory as 18th external address bit (A17) in extended bus applications, depending on the values of bits RD0 and RD1 in configuration byte ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER Table 6. Signal Descriptions (Continued) Signal Type Name P3.0 I/O Port 3. This is an 8-bit, bidirectional I/O port with internal pullups. P3.1 P3.3:2 P3.5:4 P3.6 P3.7 PSEN# O Program Store Enable. Read signal output. This ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER Table 6. Signal Descriptions (Continued) Signal Type Name V I Programming Supply Voltage. The programming supply voltage is PP applied to this pin for programming the on-chip OTPROM/EPROM. V GND Circuit Ground. Connect this pin to ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER Table 7. Memory Signal Selections (RD1:0) P1.7/CEX/ RD1:0 P3.7/RD#/A16 A17/WCLK 0 0 A17 A16 0 1 P1.7/CEX4/ A16 WCLK 1 0 P1.7/CEX4/ P3.7 only WCLK 1 1 P1.7/CEX4/ RD# asserted WCLK for addresses 7F:FFFFH PRELIMINARY PSEN# ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER 4.0 ADDRESS MAP Table 8. 8XC251SA/SB/SP/SQ Address Map Internal Address) FF:FFFFH External Memory except the top eight bytes (FF:FFF8H–FF:FFFFH) which are FF:4000H reserved for the configuration array. FF:3FFFH External memory or on-chip nonvolatile memory (8Kbytes FF:0000H ...
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... PRELIMINARY NOTICE: This document contains preliminary information on new products in production. The specifications are subject to change without notice. Verify with your local Intel sales office that you have the latest datasheet before finalizing a design. † WARNING: Stressing the device beyond the “ ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER 5.1 D.C. Characteristics Parameter values apply to all devices unless otherwise indicated. Table 9. DC Characteristics at V Symbol Parameter V Input Low Voltage IL (except EA#) V Input Low Voltage 1 IL (EA#) V Input ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER Table 9. DC Characteristics at V Symbol Parameter V Output High Voltage 1 OH (Port 0 in External Address) V Output High Voltage 2 OH (Port 2 in External Address during Page Mode) I Logical 0 ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER (NC) All other 8XC251SA/SB/SP/SQ pins are unconnected. Figure EA# RST 8XC251SA 8XC251SB 8XC251SP 8XC251SQ XTAL2 XTAL1 V SS ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER 5.2 Definition of AC Symbols Table 10. AC Timing Symbol Definitions Signals A Address D Data In L ALE Q Data Out R RD#/PSEN# W WR# 5.3 A.C. Characteristics Test Conditions: Capacitive load on all pins ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER Table 11. AC Characteristics (Continued) Symbol Parameter T (2) RD# or PSEN# Pulse Width RLRH @ 12 MHz @ 16 MHz T WR# Pulse Width WLWH @ 12 MHz @ 16 MHz T (2) ALE Low ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER Table 11. AC Characteristics (Continued) Symbol Parameter T Address (P0) Valid to Valid Data/Instruction In 1 AVDV @ 12 MHz @ 16 MHz T Address (P2) Valid to Valid Data/Instruction In 2 AVDV @ 12 MHz ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER 5.3.1 EXTERNAL BUS CYCLES, NONPAGE MODE XTAL1 ALE RD#/PSEN# P0 P2/A16/A17 † The value of this parameter depends on wait states. See the table of AC characteristics. Figure 7. External Bus Cycle: Code Fetch (Nonpage Mode) ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER XTAL1 ALE T LHLL † RD#/PSEN# T AVLL † AVRL † P2/A16/A17 † The value of this parameter depends on wait states. See the table of AC characteristics. Figure 8. External Bus Cycle: Data ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER XTAL1 ALE T LHLL † WR# T AVLL † AVWL2 † P2/A16/A17 † The value of this parameter depends on wait states. See the table of AC characteristics. Figure 9. External Bus Cycle: Data ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER 5.3.2 EXTERNAL BUS CYCLES, PAGE MODE XTAL1 ALE T LHLL † RD#/PSEN# T AVLL † P2 P0/A16/A17 Page Miss †† † The value of this parameter depends on wait states. See the table of AC characteristics. ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER XTAL1 ALE T LHLL † T LLRL † RD#/PSEN# T AVLL † P2 P0/A16/A17 † The value of this parameter depends on wait states. See the table of AC characteristics. Figure 11. External Bus Cycle: Data ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER XTAL1 ALE T LHLL † WR# T AVLL † AVWL1 † T AVWL2 † P0/A16/A17 † The value of this parameter depends on wait states. See the table of AC characteristics. Figure 12. External ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER 5.3.3 DEFINITION OF REAL-TIME WAIT SYMBOLS Table 12. Real-time Wait Timing Symbol Definitions Signals A Address D Data C WCLK Y WAIT# W WR# R RD#/PSEN# 5.3.4 EXTERNAL BUS CYCLES, REAL-TIME WAIT STATES State 1 WCLK ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER State 1 WCLK ALE WR# T max WLYX T min WLYX T WLYV WAIT# P0 A0-A7 P2 Figure 14. External Bus Cycle: Data Write (Nonpage Mode) State 1 WCLK ALE RD#/PSEN# T RLYX T RLYX T ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER State 1 WCLK ALE WR# T max WLYX T min WLYX T WLYV WAIT# P2 A8-A15 P0 Figure 16. External Bus Cycle: Data Write (Page Mode) Symbol Parameter T Wait Clock Low to Wait Set-up CLYV ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER 5.4 AC Characteristics — Serial Port, Shift Register Mode Table 14. Serial Port Timing — Shift Register Mode Symbol Parameter T Serial Port Clock Cycle Time XLXL T Output Data Setup to Clock Rising Edge QVSH ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER V – 0 0.2 V – 0 CHCL Figure 18. External Clock Drive Waveforms Inputs V – 0 inputs during testing are driven at ...
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... All thermal impedance data is approximate for static air conditions at 1 watt of power dissipation. Values change depending on operating conditions and application requirements. The Intel Packaging Handbook (order number 240800) describes Intel’s thermal impedance test methodology. 7.0 NONVOLATILE MEMORY PROGRAMMING AND VERIFICATION CHARACTERISTICS 7 ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER 7.2 Programming and Verification Timing for Nonvolatile Memory Programming Cycle P1 DVGL T AVGL PROG GLGH T SHGL 12.75V EA#/ EHSH P0 Figure 21. Timing for Programming and ...
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HIGH-PERFORMANCE CHMOS MICROCONTROLLER Table 18. Nonvolatile Memory Programming and Verification Characteristics – 27 ° Address to Data Valid AVQV T ENABLE Low to Data Valid ELQV T Data Float after ENABLE EHQZ ...
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