參數(shù)資料
型號: P87C54X2FBD,157
廠商: NXP Semiconductors
文件頁數(shù): 11/62頁
文件大?。?/td> 0K
描述: IC 80C51 MCU 256 RAM 44LQFP
產(chǎn)品培訓模塊: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
標準包裝: 800
系列: 87C
核心處理器: 8051
芯體尺寸: 8-位
速度: 33MHz
連通性: EBI/EMI,UART/USART
外圍設(shè)備: POR
輸入/輸出數(shù): 32
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: OTP
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LQFP
包裝: 托盤
其它名稱: 935271393157
P87C54X2FBD
P87C54X2FBD-ND
Philips Semiconductors
Product data
P80C3xX2; P80C5xX2;
P87C5xX2
80C51 8-bit microcontroller family
4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),
low power, high speed (30/33 MHz)
2003 Jan 24
19
TR2
Control
TL2
(8 bits)
TH2
(8 bits)
TF2
RCAP2L
RCAP2H
EXEN2
Control
EXF2
Timer 2
Interrupt
T2EX Pin
Transition
Detector
Capture
SU01622
C/T2 = 0
C/T2 = 1
*n = 6 in 6-clock mode; n = 12 in 12-clock mode.
OSC
÷ n*
T2 Pin
Figure 7. Timer 2 in Capture Mode
Not Bit Addressable
Symbol
Position
Function
Not implemented, reserved for future use.*
T2OE
T2MOD.1
Timer 2 Output Enable bit.
DCEN
T2MOD.0
Down Count Enable bit. When set, this allows Timer 2 to be configured as an up/down
counter.
T2OE
DCEN
SU01519
76
54
32
1
0
*
User software should not write 1s to reserved bits. These bits may be used in future 8051 family products to invoke new features.
In that case, the reset or inactive value of the new bit will be 0, and its active value will be 1. The value read from a reserved bit is
indeterminate.
T2MOD
Address = 0C9H
Reset Value = XXXX XX00B
Figure 8. Timer 2 Mode (T2MOD) Control Register
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