TL16C752B
3.3-V DUAL UART WITH 64-BYTE FIFO
SLLS405A – DECEMBER 1999 – REVISED AUGUST 2000
†
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 3.6 V
CC
Input voltage range, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
+0.5 V
+0.5 V
I
CC
CC
Output voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
O
Operating free-air temperature range, T
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
A
stg
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
low voltage (3.3 V nominal)
MIN NOM
MAX
UNIT
Supply voltage, V
CC
2.7
0
3.3
3.6
V
V
V
V
V
Input voltage, V
V
V
I
CC
CC
CC
CC
High-level input voltage, V (see Note 3)
IH
0.7 V
CC
Low-level input voltage, V (see Note 3)
IL
0.3 V
V
Output voltage, V (see Note 4)
0
O
I
I
I
I
= –8 mA,
= –4 mA,
= –8 mA,
= 4 mA,
See Note 6
See Note 7
See Note 6
See Note 7
V
V
–0.8
–0.8
OH
OH
OL
OL
CC
High-level output current, V
V
V
OH
CC
0.5
0.5
18
Low-level output current, V
Input capacitance, C
OL
pF
°C
I
Operating free-air temperature, T
–40
0
25
25
85
A
Virtual junction temperature range, T (see Note 5)
J
125
48
°C
Oscillator/clock speed (see Note 8)
Clock duty cycle
MHz
50%
20
36 MHz, 3.6 V
5 MHz, 3.6 V
Supply current, I
(see Note 9)
6
mA
CC
Sleep mode, 3.6 V
1.2
NOTES: 3. Meets TTL levels, V
= 2 V and V = 0.8 V on nonhysteresis inputs.
IH(max)
IO(min)
4. Applies for external output buffers.
5. These junction temperatures reflect simulated conditions. Absolute maximum junction temperature is 150°C. The customer is
responsible for verifying junction temperature.
6. These parameters apply for D7–D0.
7. These parameters apply for DTRA, DTRB, INIA, INTB, RTSA, RTSB, RXRDYA, RXRDYB, TXRDYA, TXRDYB, TXA, TXB.
8. The internal oscillator cell can only support up to 24 MHz clock frequency to make the crystal oscillating when crystal is used. If
external oscillator or other on board clock source is used, the TL16C72B can work for input clock frequency up to 48 MHz.
9. Measurement condition:
a) Normal operation other than sleep mode:
V
CC
= 3.3 V, T = 25°C. Full duplex serial activity on all two serial (UART) channels at the clock frequency specified in the
A
recommended operating conditions with divisor of one.
b) Sleep mode:
V
= 3.3 V, T = 25°C. After enabling the sleep mode for all four channels, all serial and host activity is kept idle.
CC
A
16
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TI [ TEXAS INSTRUMENTS ]
