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參數(shù)資料
型號: SC28C94A1A,518
廠商: NXP Semiconductors
文件頁數(shù): 19/39頁
文件大?。?/td> 0K
描述: IC UART QUAD W/FIFO 52-PLCC
產(chǎn)品培訓(xùn)模塊: Stand-Alone UARTs
標(biāo)準(zhǔn)包裝: 1
特點(diǎn): 故障啟動位檢測
通道數(shù): 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(diào)制解調(diào)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(yīng)商設(shè)備封裝: 52-PLCC(19.2x19.2)
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面: 828 (CN2011-ZH PDF)
其它名稱: 568-1114-6
Philips Semiconductors
Product data sheet
SC28C94
Quad universal asynchronous receiver/transmitter (QUART)
2006 Aug 09
26
AC ELECTRICAL CHARACTERISTICS1
VCC = 5 V ± 10 %, TA = –40 _C to 85 _C, unless otherwise specified.
NO
FIGURE
CHARACTERISTIC
LIMITS
UNIT
NO.
FIGURE
CHARACTERISTIC
Min
Typ
Max
UNIT
1
4
A[5:0] Setup time to RDN WRN Low
0
ns
2
4
A[5:0] Hold time from RDN WRN Low
45
ns
3
4
CEN Setup time to RDN WRN Low2
0
ns
4
CEN Hold time from RDN WRN High2
0
ns
5
4
RDN WRN Pulse Width Low
65
ns
6
4
D[7:0] Data Valid after CEN and RDN Low
65
ns
7
4
D[7:0] Data Bus floating after RDN or CEN High
10
ns
8
4
D[7:0] Data Bus Setup time before WRN or CEN High
5
ns
9
4
D[7:0] Hold time after WRN or CEN High
0
ns
10
4
Time between Reads and/or Writes3
20
ns
NOTES:
1. Parameters are valid over specified temperature range. See ordering information table for applicable temperature range and operating
supply range.
2. Timing is illustrated and referenced to the WRN and RDN inputs. The device may also be operated with CEN as a ‘strobing’ input. CEN and
RDN (also CEN and WRN) are ANDed internally. As a consequence the signal asserted last initiates the cycle; the signal negated first
terminates the cycle. Address is latched at leading edge of a read or write cycle.
3. The RDN signal must be negated for this time to guarantee that internal registers update before the next read.
A[5:0]
CEN
RDN
WRN
D[7:0]
12
1
2
10
5
7
READ CYCLE
WRITE CYCLE
3
5
6
4
8
9
SD00164
Figure 4. A Read Cycle Followed by a Write Cycle without DACKN
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