參數(shù)資料
型號： TL16C554I
廠商： Texas Instruments, Inc.
英文描述： ASYNCHRONOUS COMMUNICATIONS ELEMENT
中文描述： 異步通信元
文件頁數(shù)： 6/33頁
文件大?。?/td> 478K
代理商： TL16C554I
TL16C554, TL16C554I
ASYNCHRONOUS COMMUNICATIONS ELEMENT
SLLS165D – JANUARY 1994 – REVISED JULY 1998
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage, VCC
Clock high-level input voltage at XTAL1, VIH(CLK)
Clock low-level input voltage at XTAL1, VIL(CLK)
High-level input voltage, VIH
Low-level input voltage, VIL
Clock frequency, fclock
4.75
5
5.25
V
2
VCC
0.8
V
–0.5
V
2
VCC
0.8
V
–0.5
V
16
70
MHz
°
C
°
C
Operating free-air temperature TA
O erating free-air tem erature, TA
TL16C554
0
TL16C554I
–40
85
electrical characteristics over recommended ranges of operating free-air temperature and supply
voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
VOL
High-level output voltage
IOH = –1 mA
IOL = 1.6 mA
VCC = 5.25 V,
VI = 0 to 5.25 V,
VCC = 5.25 V,
Chip selected in write mode or chip deselected
2.4
V
Low-level output voltage
0.4
V
IIkg
Input leakage current
GND = 0,
All other terminals floating
±
10
μ
A
IOZ
High-impedance output
current
GND = 0,
VO = 0 to 5.25 V,
±
20
μ
A
ICC
Supply current
VCC = 5.25 V,
RX, DSR, DCD, CTS, and RI at 2 V,
All other inputs at 0.8 V, XTAL1 at 4 MHz,
No load on outputs,
TA = 25
°
C,
Baud rate = 50 kilobits per second
50
mA
Ci(XTAL1)
Co(XTAL2)
Ci
Co
All typical values are at VCC = 5 V, TA = 25
°
C.
These parameters apply for all outputs except XTAL2.
Clock input capacitance
15
20
pF
Clock output capacitance
VCC = 0,
All other terminals grounded,
TA = 25
TA 25 C
VSS = 0,
f = 1 MHz,
20
30
pF
Input capacitance
Output capacitance
6
10
20
pF
pF
10
clock timing requirements over recommended ranges of operating free-air temperature and supply
voltage (see Figure 1)
MIN
MAX
UNIT
tw1
tw2
tw3
Pulse duration, clock high (external clock)
31
ns
Pulse duration, clock low (external clock)
31
ns
Pulse duration, RESET
1000
ns
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TL16C554IPN 功能描述:UART 接口集成電路 Qd UART w/16b FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
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