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參數資料
型號: SC28C94A1A,512
廠商: NXP Semiconductors
文件頁數: 24/39頁
文件大?。?/td> 0K
描述: IC UART QUAD W/FIFO 52-PLCC
產品培訓模塊: Stand-Alone UARTs
標準包裝: 23
特點: 故障啟動位檢測
通道數: 4,QUART
FIFO's: 8 字節(jié)
電源電壓: 5V
帶自動流量控制功能:
帶故障啟動位檢測功能:
帶調制解調器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 52-LCC(J 形引線)
供應商設備封裝: 52-PLCC(19.2x19.2)
包裝: 管件
產品目錄頁面: 828 (CN2011-ZH PDF)
其它名稱: 568-3993-5
935262534512
SC28C94A1A
SC28C94A1A-ND
Philips Semiconductors
Product data sheet
SC28C94
Quad universal asynchronous receiver/transmitter (QUART)
2006 Aug 09
30
RESET
tRES
SD00169
Figure 10. Reset Timing
RDN
CEN
I/O as Output
I/O as Input
tPS
tPH
tPD
WRN
OLD DATA
NEW DATA
I/O PINS MUST BE STABLE FOR NON-CHANGING BUS DATA DURING THE READ.
NOTE: I/O PIN DATA IS NOT LATCHED
SD00170
Figure 11. I/O Port Timing
WRN
INTERRUPT1
OUTPUT
RDN
INTERRUPT1
OUTPUT
VM
tIR
VOL +0.5V
VOL
NOTES:
1. INCLUDES I/O WHEN USED AS TxRDY or RxDY/FFULL OUTPUTS AS WELL AS IRQN.
2. THE TEST FOR OPEN DRAIN OUTPUTS IS INTENDED TO GUARANTEE SWITCHING OF THE OUTPUT TRANSISTOR. MEASUREMENT OF THIS RESPONSE IS
REFERENCED FROM THE MIDPOINT OF THE SWITCHING SIGNAL, VM, TO A POINT 0.5V ABOVE VOL. THIS POINT REPRESENTS NOISE MARGIN THAT AS-
SURES TRUE SWITCHING HAS OCCURRED. BEYOND THIS LEVEL, THE EFFECTS OF EXTERNAL CIRCUITRY AND TEST ENVIRONMENT ARE PRONOUNCED
AND CAN GREATLY AFFECT THE RESULTANT MEASUREMENT.
SD00171
Figure 12. Interrupt Timing
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