TL16C451 Datasheet, PDF (7/23 Pages) Texas Instruments – ASYNCHRONOUS COMMUNICATIONS ELEMENTS

TL16C451, TL16C452
ASYNCHRONOUS COMMUNICATIONS ELEMENTS
SLLS053C – MAY 1989 – REVISED AUGUST 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)^†
Supply voltage range, V_CC (see Note 1 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Input voltage range at any input, V_I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Output voltage range, V_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100 mW
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 °C to 70 °C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65 °C to 150 °C
Case temperature for 10 seconds, T_C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260 °C
† _{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.
NOTE 1: All voltage values are with respect to GND.
recommended operating conditions
Supply voltage, VCC
High-level Input voltage, VIH
Low-level Input voltage, VIL
Operating free-air temperature, TA
MIN
4.75
2
– 0.5
0
NOM
5
MAX
5.25
VCC
0.8
70
UNIT
V
V
V
°C
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP† MAX UNIT
VOH
High-level output voltage
VOL
Low-level output voltage
IOH = – 0.4 mA on DB0 – DB7
IOH = – 2 mA to 4 mA on PD0 – PD7
2.4
IOH = – 0.2 mA on INIT, AFD, STB, and SLIN
IOH = – 0.2 mA on all other outputs
IOL = 4 mA on DB0 – DB7
IOL = 12 mA on PD0 – PD7
IOL = 10 mA on INIT,
AFD, STB, and SLIN (see Note 2)
V
0.4 V
IOL = 2 mA on all other outputs
IIkg
Input leakage current
VCC = 5.25 V,
VI = 0 to 5.25 V,
VSS = 0,
All other terminals floating
VCC = 5.25 V,
VSS = 0,
Ioz
High-impedance output current
VO = 0 to 5.25 V,
Chip selected and in write mode, or chip deselected
± 10 µA
± 20 µA
ICC
Supply current
VCC = 5.25 V,
VSS = 0,
SIN, DSR, RLSD, CTS, and RI at 2 V,
All other inputs at 0.8 V, XTAL1 at 4 MHz,
10 mA
No load on outputs,
Baud rate = 50 kbit/s
† _{All typical values are at VCC = 5 V, TA = 25 °C.}
NOTE 2: INIT, AFD, STB, and SLIN are open-collector output terminals that each have an internal pullup to VCC. This generates a maximum of
2 mA of internal IOL per terminal. In addition to this internal current, each terminal sinks at least 10 mA while maintaining the VOL
specification of 0.4 V maximum.
system timing requirements over recommended ranges of supply voltage and operating free-air
temperature
PARAMETER
tcR
Cycle time, read (tw7 + td8 + td9)
FIGURE
MIN MAX UNIT
175
ns
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