TL16C2752 Datasheet, PDF (12/25 Pages) Texas Instruments – 1.8-V to 5-V DUAL UART WITH 64-BYTE FIFOS

TL16C2752
SLWS188 – JUNE 2006
ELECTRICAL CHARACTERISTICS
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
5 V Nominal
PARAMETER
V_OH
High-level output voltage⁽²⁾
V_OL
Low-level output voltage⁽²⁾
I_I
Input current
I_OZ
High-impedance-state output
current
I_CC
Supply current
C_i(CLK)
C_O(CLK)
C_I
C_O
Clock input impedance
Clock output impedance
Input impedance
Output impedance
TEST CONDITIONS
I_OH = -4 mA
I_OL = 4 mA
V_CC = 5.5 V, V_SS = 0, V_I = 0 to 5.5 V, All other
terminals floating
V_CC = 5.5 V, V_SS = 0, V_I = 0 to 5.5 V, Chip selected in
write mode or chip deselected
V_CC = 5.5 V, T_A = 0°C, RXA, RXB, DSRA, DSRB,
CDA, CDB, CTSA, CTSB, RIA, and RIB at 2 V, All
other inputs at 0.8 V, XTAL1 at 48 MHz, No load on
outputs
V_CC = 0, V_SS = 0, f = 1 MHz,
T_A = 25°C, All other terminals grounded
MIN
4
TYP ⁽¹⁾
15
20
6
10
(1) All typical values are at V_CC = 5 V and T_A = 25°C.
(2) These parameters apply for all outputs except XTAL2.
www.ti.com
MAX
0.4
10
UNIT
V
V
µA
±20 µA
mA
20 pF
30 pF
10 pF
20 pF
TIMING REQUIREMENTS
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
tw8 Pulse duration, RESET
tw1 Pulse duration, clock high
tw2 Pulse duration, clock low
tcR
Cycle time, read (tw7 + td8 + th7)
tcW Cycle time, write (tw6 + td5 + th4)
tw6 Pulse duration, IOW or CS
tw7 Pulse duration, IOR or CS
tSU3 Setup time, data valid before IOW↑ or CS↑
th4 Hold time, address valid after IOW↑ or CS↑
th5 Hold time, data valid after IOW↑ or CS↑
t_h7 Hold time, data valid after IOR↑ or CS↑
td5 Delay time, address valid before IOW↓ or CS↓
td8 Delay time, address valid to IOR↓ or CS↓
td10 Delay time, IOR↓ or CS↓ to data valid
td11 Delay time, IOR↑ or CS↑ to floating data
td12 Write cycle to write cycle delay
td13 Read cycle to read cycle delay
ALT.
SYMBOL
FIGURE
TEST
CONDITIONS
tRESET
tXH
tXL
RC
WC
tIOW
tIOR
tDS
tWA
tDH
t_RA
tAW
tAR
tRVD
tHZ
6
8
7
7
8
7
7
7
8
7
8
8
CL = 30 pF
8
CL = 30 pF
7
8
1.8 V
MIN MAX
1
LIMITS
2.5 V
3.3 V
MIN MAX MIN MAX
1
1
5V
MIN MAX
1
UNIT
µs
25
16
12
8
ns
115
80
62
57
115
80
62
57
80
55
45
40
80
55
45
40
25
20
15
15
20
15
10
10
15
10
5
5
20
15
10
10
15
10
7
7
15
10
7
7
55
35
25
40
30
20
100
75
60
100
75
60
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
20 ns
20 ns
50 ns
50 ns
BAUD GENERATOR SWITCHING CHARACTERISTICS
over recommended ranges of supply voltage and operating free-air temperature, C_L = 30 pF (for FN package only)
PARAMETER
ALT.
SYMBOL
FIGURE
TEST
CONDITIONS
1.8 V
MIN MAX
LIMITS
2.5 V
3.3 V
MIN MAX MIN MAX
5V
MIN MAX
UNIT
tw3 Pulse duration, BAUDOUT low
tw4 Pulse duration, BAUDOUT high
td1 Delay time, XIN↑ to BAUDOUT↑
td2 Delay time, XIN↑↓ to BAUDOUT↓
tLW
6
tHW
6
tBLD
6
tBHD
6
CLK ÷ 2
CLK ÷ 2
50
50
35
35
35
27
16
ns
35
27
16
ns
25
20
15 ns
25
20
15 ns
12
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