參數(shù)資料
型號(hào): P89LPC938FDH
廠商: NXP Semiconductors N.V.
元件分類: 8位微控制器
英文描述: 8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable Flash with 10-bit A-D converter
封裝: P89LPC938FDH<SOT361-1 (TSSOP28)|<<http://www.nxp.com/packages/SOT361-1.html<1<Always Pb-free,;P89LPC938FHN<SOT788-1 (HVQFN28)|<<http://www.nxp.com/packages/SOT788-1.html&
文件頁(yè)數(shù): 49/68頁(yè)
文件大?。?/td> 318K
代理商: P89LPC938FDH
9397 750 14051
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 25 February 2005
53 of 68
Philips Semiconductors
P89LPC938
8-bit microcontroller with 10-bit A/D converter
11. Dynamic characteristics
Table 11:
AC characteristics
VDD = 2.4 V to 3.6 V, unless otherwise specied.
Tamb = 40 °C to +85 °C for industrial applications, unless otherwise specied. [1] [2]
Symbol
Parameter
Conditions
Variable clock
fosc = 12 MHz
Unit
Min
Max
Min
Max
fOSC(RC)
internal RC oscillator frequency
7.189
7.557
7.189
7.557
MHz
fOSC(WD)
internal watchdog oscillator frequency
320
520
320
520
kHz
fosc
oscillator frequency
0
12
-
MHz
Tcy(CLK)
clock cycle time
83
-
ns
fCLKLP
low power select frequency
0
8
-
MHz
Glitch lter
tgr
glitch rejection
P1.5/RST pin
-
50
-
50
ns
any pin except
P1.5/RST
-
15
-
15
ns
tsa
signal acceptance
P1.5/RST pin
125
-
125
-
ns
any pin except
P1.5/RST
50
-
50
-
ns
External clock
tCHCX
clock HIGH time
33
Tcy(CLK) tCLCX 33
-
ns
tCLCX
clock LOW time
33
Tcy(CLK) tCHCX 33
-
ns
tCLCH
clock rise time
-8
-
8
ns
tCHCL
clock fall time
-8
-
8
ns
Shift register (UART mode 0)
tXLXL
serial port clock cycle time
16 Tcy(CLK) -
1333
-
ns
tQVXH
output data set-up to clock rising edge
time
13 Tcy(CLK) -
1083
-
ns
tXHQX
output data hold after clock rising
edge time
-Tcy(CLK) + 20
-
103
ns
tXHDX
input data hold after clock rising edge
time
-0
-
0
ns
tXHDV
input data valid to clock rising edge
time
150
-
150
-
ns
SPI interface
fSPI
SPI operating frequency
2.0 MHz (slave)
0
CCLK
6
0
2.0
MHz
3.0 MHz (master)
-
CCLK
4
-
3.0
MHz
tSPICYC
SPI cycle time
2.0 MHz (slave)
6
CCLK
-
500
-
ns
3.0 MHz (master)
4
CCLK
-
333
-
ns
tSPILEAD
SPI enable lead time
2.0 MHz (slave)
250
-
250
-
ns
tSPILAG
SPI enable lag time
2.0 MHz (slave)
250
-
250
-
ns
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