Datasheet
TL16C752B
SLLS405C –DECEMBER 1999–REVISED JUNE 2010
www.ti.com
ABSOLUTE MAXIMUM RATINGS
(1)
VALUE / UNIT
Supply voltage range, V
CC
–0.5 V to 3.6 V
Input voltage range, V
I
–0.5 V to V
CC
+0.5 V
Output voltage range, V
O
–0.5 V to V
CC
+0.5 V
Operating free-air temperature range, T
A
–40°C to 85°C
Storage temperature range, T
stg
–65°C to 150°C
(1) 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 3.3 3.6 V
Input voltage, V
I
0 V
CC
V
High-level input voltage, V
IH
(1)
0.7 V
CC
V
CC
V
Low-level input voltage, V
IL
(1)
0.3 V
CC
V
Output voltage, V
O
(2)
0 V
CC
V
IOH = -8 mA
(3)
V
CC
– 0.8
High-level output current, V
OH
V
IOH = -4 mA
(4)
V
CC
– 0.8
IOL = -8 mA
(3)
0.5
Low-level output current, V
OL
V
IOL = 4 mA
(4)
0.5
Input capacitance, C
I
18 pF
Operating free-air temperature, T
A
–40 25 85 °C
Virtual junction temperature range, T
J
(4)
0 25 125 °C
Oscillator/clock speed
(5)
48 MHz
Clock duty cycle 50%
36 MHz, 3.6 V 20
Supply current, I
CC
(6)
5 MHz, 3.6 V 6 mA
Sleep mode, 3.6 V 1.2
(1) Meets TTL levels, V
IO(min)
= 2 V and V
IH(max)
= 0.8 V on nonhysteresis inputs.
(2) Applies for external output buffers.
(3) These parameters apply for D7-D0.
(4) These parameters apply for DTRA, DTRB, INIA, INTB, RTSA, RTSB, RXRDYA, RXRDYB, TXRDYA, TXRDYB, TXA, TXB.
(5) 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.:
(6) Measured condition:
(a) Normal operation other than sleep mode:
V
CC
= 3.3 V, T
A
= 25°C. Full duplex serial activity on all two serial (UART) channels at the clock frequency specified in the
recommended operating conditions with divisor of one.
(b) Sleep mode:
V
CC
= 3.3 V, T
A
= 25°C. After enabling the sleep mode for all four channels, all serial and host activity is kept idle.
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