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TL16C2552IFNR 数据表(PDF) 11 Page - Texas Instruments

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部件名 TL16C2552IFNR
功能描述  1.8-V to 5-V DUAL UART WITH 16-BYTE FIFOS
Download  34 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TL16C2552IFNR 数据表(HTML) 11 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TIMING REQUIREMENTS
BAUD GENERATOR SWITCHING CHARACTERISTICS
TL16C2552
SLWS163A – SEPTEMBER 2005 – REVISED JUNE 2006
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
5 V Nominal
PARAMETER
TEST CONDITIONS
MIN
TYP(1)
MAX
UNIT
VOH
High-level output voltage(2)
IOH = -4 mA
4
V
VOL
Low-level output voltage(2)
IOL = 4 mA
0.4
V
II
Input current
VCC = 5.5 V, VSS = 0, VI = 0 to 5.5 V, All other
10
µA
terminals floating
IOZ
High-impedance-state output
VCC = 5.5 V, VSS = 0, VI = 0 to 5.5 V, Chip selected in
±20
µA
current
write mode or chip deselected
ICC
Supply current
VCC = 5.5 V, TA = 0°C, RXA, RXB, DSRA, DSRB,
7.5
mA
CDA, CDB, CTSA, CTSB, RIA, and RIB at 2 V, All
other inputs at 0.8 V, XTAL1 at 24 MHz, No load on
outputs
Ci(CLK)
Clock input impedance
15
20
pF
CO(CLK)
Clock output impedance
20
30
pF
VCC = 0, VSS = 0, f = 1 MHz,
TA = 25°C, All other terminals grounded
CI
Input impedance
6
10
pF
CO
Output impedance
10
20
pF
(1)
All typical values are at VCC = 5 V and TA = 25°C.
(2)
These parameters apply for all outputs except XTAL2.
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
LIMITS
ALT.
TEST
PARAMETER
FIGURE
1.8 V
2.5 V
3.3 V
5 V
UNIT
SYMBOL
CONDITIONS
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
tw8
Pulse duration, RESET
tRESET
1
1
1
1
µs
tw1
Pulse duration, clock high
tXH
6
40
25
20
18
ns
tw2
Pulse duration, clock low
tXL
tcR
Cycle time, read (tw7 + td8 + th7)
RC
8
115
80
62
57
ns
tcW
Cycle time, write (tw6 + td5 + th4)
WC
7
115
80
62
57
ns
tw6
Pulse duration, IOW or CS
tIOW
7
80
55
45
40
ns
tw7
Pulse duration, IOR or CS
tIOR
8
80
55
45
40
ns
tSU3
Setup time, data valid before IOW
↑ or CS↑
tDS
7
25
20
15
15
ns
th4
Hold time, address valid after IOW
↑ or CS↑
tWA
7
20
15
10
10
ns
th5
Hold time, data valid after IOW
↑ or CS↑
tDH
7
15
10
5
5
ns
th7
Hold time, data valid after IOR
↑ or CS↑
tRA
8
20
15
10
10
ns
td5
Delay time, address valid before IOW
↓ or CS↓
tAW
7
15
10
7
7
ns
td8
Delay time, address valid to IOR
↓ or CS↓
tAR
8
15
10
7
7
ns
td10
Delay time, IOR
↓ or CS↓ to data valid
tRVD
8
CL = 30 pF
55
35
25
20
ns
td11
Delay time, IOR
↑ or CS↑ to floating data
tHZ
8
CL = 30 pF
40
30
20
20
ns
td12
Write cycle to write cycle delay
7
100
75
60
50
ns
td13
Read cycle to read cycle delay
8
100
75
60
50
ns
over recommended ranges of supply voltage and operating free-air temperature, C
L = 30 pF (for FN package only)
LIMITS
ALT.
TEST
PARAMETER
FIGURE
1.8 V
2.5 V
3.3 V
5 V
UNIT
SYMBOL
CONDITIONS
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
tw3
Pulse duration, BAUDOUT low
tLW
6
CLK ÷ 2
80
50
42
35
ns
tw4
Pulse duration, BAUDOUT high
tHW
6
CLK
÷ 2
80
50
42
35
ns
td1
Delay time, XIN
↑ to BAUDOUT↑
tBLD
6
55
40
30
25
ns
td2
Delay time, XIN
↑↓ to BAUDOUT↓
tBHD
6
55
40
30
25
ns
11
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