p87c51mc2ba/02 NXP Semiconductors, p87c51mc2ba/02 Datasheet - Page 22

• Manufacturer Part Number: p87c51mc2ba/02
• Description: 80c51 8-bit Microcontroller Family With Extended Memory
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 8:
T
duty cycle.
[1]
[2]
[3]
[4]
9397 750 12302
Product data
Symbol Fig
t
t
SPIR
SPIF
amb
Parameters are valid over operating temperature range unless otherwise specified.
Load capacitance for port 0, ALE, and PSEN = 100 pF, load capacitance for all other outputs = 80 pF.
Interfacing the microcontroller to devices with float times up to 45 ns is permitted. This limited bus contention will not cause damage to
Port 0 drivers.
Parts are tested down to 2 MHz, but are guaranteed to operate down to 0 Hz.
= 0 to +70 C for commercial unless otherwise specified. Formulae including t
8, 9,
10,
11
8, 9,
10,
11
[1][2][3]
Dynamic characteristics
Parameter
Rise time
Fall time
SPI outputs
(SPICLK,
MOSI, MISO)
SPI outputs
(SPICLK,
MOSI, MISO,
SS)
SPI outputs
(SPICLK,
MOSI, MISO)
SPI outputs
(SPICLK,
MOSI, MISO,
SS)
2.7 V < V
Variable clock
Min
-
-
-
-
…continued
DD
Rev. 03 — 13 November 2003
< 5.5 V
Max
100
2000
100
2000
[4]
f
12 MHz
Min Max
-
-
-
-
P87C51MB2/P87C51MC2
OSC
=
100
2000 -
100
2000 -
[4]
4.5 V < V
Variable clock
Min
-
-
CLCL
80C51 8-bit microcontroller family
DD
assume oscillator signal with 50/50
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
< 5.5 V
Max
100
2000
100
2000
[4]
f
24 MHz
Min
-
-
-
-
OSC
=
Max
100
2000
100
2000
[4]
22 of 36
Unit
ns
ns