參數(shù)資料
型號: XR16L570IL24-F
廠商: Exar Corporation
文件頁數(shù): 29/47頁
文件大?。?/td> 0K
描述: IC UART FIFO 16B 24QFN
標(biāo)準(zhǔn)包裝: 490
特點: *
通道數(shù): 1,UART
FIFO's: 16 字節(jié)
規(guī)程: RS232,RS422
電源電壓: 1.62 V ~ 5.5 V
帶自動流量控制功能:
帶IrDA 編碼器/解碼器:
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: 24-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 24-QFN 裸露焊盤(4x4)
包裝: 托盤
XR16L570
35
REV. 1.0.1
SMALLEST 1.62V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
Test: The following inputs must remain steady at VCC or GND state to minimize sleep current: A0-A2, D0-D7, IOR#, IOW#,
CS# and all modem inputs. Also, RX input must idle at logic 1 state while asleep. Floating inputs may result in sleep
currents in the mA range.
For PowerSave, the UART internally isolates all of these inputs (except the modem input CTS# and Reset pins) therefore
eliminating any unnecessary external buffers to keep the inputs steady. SEE”POWER-SAVE FEATURE” ON PAGE 17. To
achieve minimum power drain, the voltage at any of the inputs of the L570 should NOT be lower than its VCC supply.
DC ELECTRICAL CHARACTERISTICS
UNLESS OTHERWISE NOTED: TA= -40
O TO +85OC, VCC=2.97 - 5.5V
SYMBOL
PARAMETER
LIMITS
3.3V
MIN
MAX
LIMITS
5.0V
MIN
MAX
UNITS
CONDITIONS
VILCK
Clock Input Low Level
-0.3
0.6
-0.5
0.6
V
VIHCK
Clock Input High Level
2.4
VCC
3.0
VCC
V
VIL
Input Low Voltage
-0.3
0.8
-0.5
0.8
V
VIH
Input High Voltage
2.0
5.5
2.2
5.5
V
VOL
Output Low Voltage
0.4
V
IOL = 6 mA
IOL = 4 mA
VOH
Output High Voltage
2.0
2.4
V
IOH = -6 mA
IOH = -1 mA
IIL
Input Low Leakage Current
±10
uA
IIH
Input High Leakage Current
±10
uA
CIN
Input Pin Capacitance
5
pF
ICC
Power Supply Current
2
3
mA
ISLEEP/IPWRSV
Sleep / Power-Save Current
15
30
uA
See Test
DC ELECTRICAL CHARACTERISTICS
UNLESS OTHERWISE NOTED: TA= -40
O TO +85OC, VCC=1.62 - 2.75V
SYMBOL
PARAMETER
LIMITS
1.8V
MIN
MAX
LIMITS
2.5V
MIN
MAX
UNITS
CONDITIONS
VILCK
Clock Input Low Level
-0.3
0.3
-0.3
0.6
V
VIHCK
Clock Input High Level
1.4
VCC
1.8
VCC
V
VIL
Input Low Voltage
-0.3
0.2
-0.3
0.5
V
VIH
Input High Voltage
1.4
5.5
1.8
5.5
V
VOL
Output Low Voltage
0.4
V
IOL = 2 mA
IOL = 1.5 mA
VOH
Output High Voltage
1.4
1.8
V
IOH = -400 uA
IOH = -200 uA
IIL
Input Low Leakage Current
±10
uA
IIH
Input High Leakage Current
±10
uA
CIN
Input Pin Capacitance
5
pF
ICC
Power Supply Current
0.5
1
mA
ISLEEP/IPWRSV
Sleep Current
3
6
uA
See Test
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