P87LPC760BDH NXP Semiconductors, P87LPC760BDH Datasheet - Page 36

• Manufacturer Part Number: P87LPC760BDH
• Description: MCU 8-Bit 87LP 80C51 CISC 1KB EPROM 5V 14-Pin TSSOP Tube
• Manufacturer: NXP Semiconductors

Specifications of P87LPC760BDH

• Package: 14TSSOP
• Device Core: 80C51
• Family Name: 87LP
• Maximum Speed: 20 MHz
• Ram Size: 128 Byte
• Program Memory Size: 1 KB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 12
• Interface Type: I2C/UART
• Operating Temperature: 0 to 70 °C
• Number Of Timers: 2

1. Tables 6 and 7 apply to UART modes 1 and 3 (variable rate modes), and show CPU clock rates in MHz for standard baud rates from 2400 to
2. Table 6 shows timer settings and CPU clock rates with the SMOD1 bit in the PCON register = 0 (the default after reset), while Table 7
3. The tables show all potential CPU clock frequencies up to 20 MHz that may be used for baud rates from 9600 baud to 115.2 k baud. Other
4. Table entries marked with an asterisk (*) indicate standard crystal and ceramic resonator frequencies that may be obtained from many
Philips Semiconductors
Table 9. Baud Rates, Timer Values, and CPU Clock Frequencies for SMOD1 = 0
Table 10. Baud Rates, Timer Values, and CPU Clock Frequencies for SMOD1 = 1
NOTES TO TABLES 9 AND 10:
2002 Mar 07
Timer Co nt
Timer Count
Low power, low price, low pin count (14 pin)
microcontroller with 1 kbyte OTP
115.2k baud.
reflects the SMOD1 bit = 1.
CPU clock frequencies that would give only lower baud rates are not shown.
sources without special ordering.
Timer Co nt
Timer Count
–10
–11
–12
–13
–14
–15
–16
–17
–18
–19
–20
–21
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–1
–2
–3
–4
–5
–6
–7
–8
–9
* 1.8432
* 3.6864
0.2304
0.4608
0.6912
0.9216
1.1520
1.3824
1.6128
2.0736
2.3040
2.5344
2.7648
2.9952
3.2256
3.4560
3.9168
4.1472
4.3776
4.6080
4.8384
2400
* 1.8432
* 3.6864
0.4608
0.9216
1.3824
2.3040
2.7648
3.2256
4.1472
4.6080
2400
* 1.8432
* 3.6864
* 7.3728
0.4608
0.9216
1.3824
2.3040
2.7648
3.2256
4.1472
4.6080
5.0688
5.5296
5.9904
6.4512
6.9120
7.8336
8.2944
8.7552
9.2160
9.6768
4800
* 3.6864
* 7.3728
0.9216
1.8432
2.7648
4.6080
5.5296
6.4512
8.2944
9.2160
4800
* 14.7456
* 18.4320
* 11.0592
* 1.8432
* 3.6864
* 7.3728
10.1376
12.9024
13.8240
15.6672
16.5888
17.5104
19.3536
11.9808
0.9216
2.7648
4.6080
5.5296
6.4512
8.2944
9.2160
9600
* 14.7456
* 18.4320
* 11.0592
* 1.8432
* 3.6864
* 7.3728
12.9024
16.5888
5.5296
9.2160
9600
33
Baud Rate
* 11.0592
* 14.7456
* 18.4320
Baud Rate
* 1.8432
* 3.6864
* 7.3728
12.9024
16.5888
5.5296
9.2160
19.2 k
–
–
–
–
–
–
–
–
–
–
–
* 11.0592
* 14.7456
* 18.4320
* 3.6864
* 7.3728
19.2k
–
–
–
–
–
* 14.7456
* 18.4320
* 11.0592
* 3.6864
* 7.3728
38.4 k
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
* 14.7456
* 7.3728
38.4k
* 11.0592
–
–
–
–
–
–
–
–
16.5888
5.5296
57.6 k
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
P87LPC760
Preliminary data
* 11.0592
* 11.0592
57.6k
115.2 k
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
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