參數(shù)資料
型號(hào): SC28L198A1BE,557
廠商: NXP Semiconductors
文件頁(yè)數(shù): 46/57頁(yè)
文件大?。?/td> 0K
描述: IC UART OCTAL W/FIFO 100-LQFP
產(chǎn)品培訓(xùn)模塊: Stand-Alone UARTs
標(biāo)準(zhǔn)包裝: 450
特點(diǎn): 故障啟動(dòng)位檢測(cè)
通道數(shù): 8
FIFO's: 16 字節(jié)
電源電壓: 3.3V,5V
帶自動(dòng)流量控制功能:
帶故障啟動(dòng)位檢測(cè)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: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(14x14)
包裝: 管件
產(chǎn)品目錄頁(yè)面: 828 (CN2011-ZH PDF)
其它名稱: 568-1210
935262731557
SC28L198A1BE
Philips Semiconductors
Product data sheet
SC28L198
Octal UART for 3.3 V and 5 V supply voltage
2006 Aug 10
50
SCLK
IACKN
CEN
W_RN
ADDRESS
DATA
DACKN
INVALID
DON’T CARE
C1
C2
C3
C4
VALID
tCS
tRWS
tAS
tAH
tDD
DAKDLY
C4
DAKDLY
CEN
HIGH
tDF
INVALID
DON’T CARE
NOTE:
CEN must not be active during an IACKN cycle. If CEN is active, IACKN will be ignored
and a normal read or write will be executed according to W_RN. In the synchronous
mode, extended IACKN signal will start another IACKN. (This may not be desired, but
is allowed.)
SD00525
Figure 6. Basic IACKN Cycle, ASYNC/SYNC
C1 and C2 should be chosen according to the
crystal manufacturer’s specification.
C1 and C2 values will include any parasitic
capacitance of the wiring.
fX1
+5V
1K required for
TTL gate.
X1
X2
C1 = C2 = 24pF FOR CL = 20PF
X1
X2
3.6864MHz
3pF
4pF
50 KOHMs
TO
150 KOHMs
28C198
NOTES:
C1 and C2 should be based on manufacturer’s specification.
X1 and X2 parasitic capacitance IS 1-2pF AND 3-5pF, respectively.
GAIN:
at 4MHz 8 to 14db; at 8MHz 2 to 6db
PHASE: at 4MHz 272
° to 276°; at 8MHz 272° to 276°
The above figures for 5V operation. Operation at 3V is to be determined.
TYPICAL CRYSTAL SPECIFICATION
FREQUENCY:
2 – 4MHZ
LOAD CAPACITANCE (CL):
12 – 32pF
TYPE OF OPERATION:
PARALLEL RESONANT, FUNDAMENTAL MODE
NC
C1
C2
MUX
To
remainder
of circuit
÷ 2
38.4kHz CLOCK
BRG
TO I/O CHANGE-OF-STATE DETECTORS
22
STANDARD
BAUD
RATES
X1 L/H
T/R fX1
SD00198
Figure 7. X1/X2 Communication Crystal Clock
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