P87LPC764BDH,512 NXP Semiconductors, P87LPC764BDH,512 Datasheet - Page 35

• Manufacturer Part Number: P87LPC764BDH,512
• Description: IC 80C51 MCU 4K OTP 20-TSSOP
• Manufacturer: NXP Semiconductors
• Series: LPC700r

Specifications of P87LPC764BDH,512

• Program Memory Type: OTP
• Program Memory Size: 4KB (4K x 8)
• Package / Case: 20-TSSOP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, POR, WDT
• Number Of I /o: 18
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Processor Series: P87LPC7x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: I2C/UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 18
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 6 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: 0 C
• Package: 20TSSOP
• Device Core: 80C51
• Family Name: 87LP
• Maximum Speed: 20 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: OM10063 - PROGRAMMER LPC700 P76XLCPOM10050 - EMULATOR LPC700 PDS76X
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-1259-5; 935267867512; P87LPC764BDH

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 115.2k 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 10. Baud Rates, Timer Values, and CPU Clock Frequencies for SMOD1 = 1
NOTES TO TABLES 9 AND 10:
2003 Sep 03
Timer Co nt
Timer Count
Low power, low price, low pin count (20 pin)
microcontroller with 4 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.
–10
–11
–12
–13
–14
–15
–16
–17
–18
–19
–20
–21
–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
* 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
* 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
34
Baud Rate
* 11.0592
* 14.7456
* 18.4320
* 1.8432
* 3.6864
* 7.3728
12.9024
16.5888
5.5296
9.2160
19.2k
–
–
–
–
–
–
–
–
–
–
–
* 14.7456
* 18.4320
* 11.0592
* 3.6864
* 7.3728
38.4k
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
* 11.0592
16.5888
5.5296
57.6k
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
P87LPC764
* 11.0592
Product data
115.2k
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–