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87C552 Datasheet(PDF) 7 Page - NXP Semiconductors

Part # 87C552
Description  80C51 8-bit microcontroller 8K/256 OTP, 8 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

87C552 Datasheet(HTML) 7 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
87C552
80C51 8-bit microcontroller
8K/256 OTP, 8 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O
1998 May 01
7
Serial Control Register (S1CON) – See Table 2
S1CON (D8H)
CR2
ENS1
STA
STO
SI
AA
CR1
CR0
Bits CR0, CR1 and CR2 determine the serial clock frequency that is generated in the master mode of operation.
Table 2. Serial Clock Rates
BIT FREQUENCY (kHz) AT fOSC
CR2
CR1
CR0
6MHz
12MHz
16MHz
fOSC DIVIDED BY
0
0
0
23
47
62.5
256
0
0
1
27
54
71
224
0
1
0
31.25
62.5
83.3
192
0
1
1
37
75
100
160
1
0
0
6.25
12.5
17
960
1
0
1
50
100
133 1
120
1
1
0
100
200
267 1
60
1
1
1
0.25 < 62.5
0.5 < 62.5
0.67 < 56
96
× (256 – (reload value Timer 1))
0 to 225
0 to 224
0 to 223
Timer 1 in Mode 2.
NOTE:
1. These frequencies exceed the upper limit of 100kHz of the I2C-bus specification and cannot be used in an I2C-bus application.
ABSOLUTE MAXIMUM RATINGS1, 2, 3
PARAMETER
RATING
UNIT
Storage temperature range
–65 to +150
°C
Voltage on EA/VPP to VSS
–0.5 to +13
V
Voltage on any other pin to VSS
–0.5 to +6.5
V
Input, output DC current on any single I/O pin
5.0
mA
Power dissipation (based on package heat transfer limitations, not device power
consumption)
1.0
W
NOTES:
1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any conditions other than those described in the AC and DC Electrical Characteristics section
of this specification is not implied.
2. This product includes circuitry specifically designed for the protection of its internal devices from the damaging effects of excessive static
charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying greater than the rated maxima.
3. Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to VSS unless otherwise
noted.
DEVICE SPECIFICATIONS
SUPPLY VOLTAGE (V)
FREQUENCY (MHz)
TYPE
MIN
MAX
MIN
MAX
TEMPERATURE RANGE (
°C)
P87C552-4
4.5
5.5
3.5
16
0 to +70
P87C552-5
4.5
5.5
3.5
16
–40 to +85


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