参数资料
| 型号： | P87C51RA2BA,512 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 39/67页 |
| 文件大小： | 0K |
| 描述： | IC 80C51 MCU 512 RAM 44PLCC |
| 产品培训模块： | Migrating from 8/16-Bit MCUs to 32-Bit ARMs |
| 标准包装： | 26 |
| 系列： | 87C |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 33MHz |
| 连通性： | EBI/EMI，UART/USART |
| 外围设备： | POR，PWM，WDT |
| 输入/输出数： | 32 |
| 程序存储器容量： | 16KB（16K x 8） |
| 程序存储器类型： | OTP |
| RAM 容量： | 512 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 振荡器型： | 内部 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 44-LCC（J 形引线） |
| 包装： | 管件 |
| 其它名称： | 568-7904-5 568-7904-5-ND 568-8355-5 935271889512 P87C51RA2BA P87C51RA2BA,512-ND P87C51RA2BA-ND |
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Philips Semiconductors
Product data
P87C51RA2/RB2/RC2/RD2
80C51 8-bit microcontroller family 8KB/16KB/32KB/64KB OTP
with 512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high
speed (30/33 MHz)
2003 Jan 24
44
DC ELECTRICAL CHARACTERISTICS
Tamb = 0 °C to +70 °C or –40 °C to +85 °C; VCC = 2.7 V to 5.5 V; VSS = 0 V (16 MHz max. CPU clock)
SYMBOL
PARAMETER
TEST
CONDITIONS
LIMITS
UNIT
MIN
TYP1
MAX
VIL
Input low voltage11
4.0 V < VCC < 5.5 V
–0.5
0.2 VCC–0.1
V
2.7 V < VCC < 4.0 V
–0.5
0.7 VCC
V
VIH
Input high voltage (ports 0, 1, 2, 3, EA)
0.2 VCC+0.9
VCC+0.5
V
VIH1
Input high voltage, XTAL1, RST11
0.7 VCC
VCC+0.5
V
VOL
Output low voltage, ports 1, 2, 8
VCC = 2.7 V; IOL = 1.6 mA2
–
0.4
V
VOL1
Output low voltage, port 0, ALE, PSEN8, 7
VCC = 2.7 V; IOL = 3.2 mA2
–
0.4
V
VOH
Output high voltage, ports 1, 2, 3 3
VCC = 2.7 V; IOH = –20 mA
VCC – 0.7
–
V
VCC = 4.5 V; IOH = –30 mA
VCC – 0.7
–
V
VOH1
Output high voltage (port 0 in external bus
mode), ALE9, PSEN3
VCC = 2.7 V; IOH = –3.2 mA
VCC – 0.7
–
V
IIL
Logical 0 input current, ports 1, 2, 3
VIN = 0.4 V
–1
–50
mA
ITL
Logical 1-to-0 transition current, ports 1, 2, 36
VIN = 2.0 V; See note 4
–
–650
mA
ILI
Input leakage current, port 0
0.45 < VIN < VCC – 0.3
–
±10
mA
ICC
Power supply current (see Figure 41 and
Source Code):
Active mode @ 16 MHz
mA
Idle mode @ 16 MHz
mA
Power-down mode or clock stopped
(see Figure 37 for conditions) 12
Tamb = 0 °C to 70 °C
2
30
mA
Tamb = –40 °C to +85 °C
3
50
mA
VRAM
RAM keep-alive voltage
1.2
V
RRST
Internal reset pull-down resistor
40
225
k
CIO
Pin capacitance10 (except EA)
–
15
pF
NOTES:
1. Typical ratings are not guaranteed. Values listed are based on tests conducted on limited number of samples at room temperature.
2. Capacitive loading on ports 0 and 2 may cause spurious noise to be superimposed on the VOLs of ALE and ports 1 and 3. The noise is
due to external bus capacitance discharging into the port 0 and port 2 pins when these pins make 1-to-0 transitions during bus operations.
In the worst cases (capacitive loading > 100 pF), the noise pulse on the ALE pin may exceed 0.8 V. In such cases, it may be desirable to
qualify ALE with a Schmitt Trigger, or use an address latch with a Schmitt Trigger STROBE input. IOL can exceed these conditions provided
that no single output sinks more than 5 mA and no more than two outputs exceed the test conditions.
3. Capacitive loading on ports 0 and 2 may cause the VOH on ALE and PSEN to momentarily fall below the VCC–0.7 specification when the
address bits are stabilizing.
4. Pins of ports 1, 2 and 3 source a transition current when they are being externally driven from 1 to 0. The transition current reaches its
maximum value when VIN is approximately 2 V.
5. See Figures 43 through 46 for ICC test conditions and Figure 41 for ICC vs. Frequency
12-clock mode characteristics:
Active mode (operating):
ICC = 1.0 mA + 1.1 mA × FREQ.[MHz]
Active mode (reset):
ICC = 7.0 mA + 0.6 mA
FREQ.[MHz]
Idle mode:
ICC = 1.0 mA + 0.22 mA
FREQ.[MHz]
6. This value applies to Tamb = 0 °C to +70 °C. For Tamb = –40 °C to +85 °C, ITL = –750 mA.
7. Load capacitance for port 0, ALE, and PSEN = 100 pF, load capacitance for all other outputs = 80 pF.
8. Under steady state (non-transient) conditions, IOL must be externally limited as follows:
Maximum IOL per port pin:
15 mA (*NOTE: This is 85
°C specification.)
Maximum IOL per 8-bit port:
26 mA
Maximum total IOL for all outputs:
71 mA
If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed
test conditions.
9. ALE is tested to VOH1, except when ALE is off then VOH is the voltage specification.
10. Pin capacitance is characterized but not tested. Pin capacitance is less than 25 pF. Pin capacitance of ceramic package is less than 15 pF
(except EA is 25 pF).
11. To improve noise rejection a nominal 100 ns glitch rejection circuitry has been added to the RST pin, and a nominal 15 ns glitch rejection
circuitry has been added to the INT0 and INT1 pins. Previous devices provided only an inherent 5 ns of glitch rejection.
12. Power down mode for 3 V range: Commercial Temperature Range – typ: 0.5
mA, max. 20 mA; Industrial Temperature Range – typ. 1.0 mA,
max. 30
mA;
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