TL16C552A, TL16C552AM
DUAL ASYNCHRONOUS COMMUNICATIONS ELEMENT
WITH FIFO
SLLS189D – NOVEMBER 1994 – REVISED JANUARY 1999
recommended operating conditions
MIN NOM
MAX
UNIT
V
Supply voltage, V
DD
4.75
5
5.25
Clock high-level input voltage, V
2
0
2
0
V
V
IH(CLK)
DD
0.8
Clock low-level input voltage, V
High-level input voltage, V
V
IL(CLK)
V
DD
0.8
V
IH
Low-level input voltage, V
V
IL
Clock frequency, f
clock
16
85
MHz
I suffix
–40
–55
Operating free-air temperature, T
°C
A
M suffix
125
package thermal characteristics
FN Package
HV Package
PARAMETER
TEST CONDITIONS
Board mounted, no air flow
UNIT
MIN
TYP
52
MAX
MIN
TYP
74
3
MAX
R
R
Junction-to-ambient thermal impedance
Junction-to-case thermal impedance
Junction temperature
°C/W
°C/W
°C/W
θJA
θJC
J
14
T
115
150
electrical characteristics over recommended ranges of operating free-air temperature and supply
voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
I
I
= –12 mA for PD0–PD7,
= –4 mA for all other outputs (see Note 2),
OH
OH
V
V
High-level output voltage
2.4
V
OH
I
I
I
= 12 mA for PD0–PD7,
= 12 mA for INIT, AFD, STB, and SLIN,
= 4 mA for all other outputs
OL
OL
OL
Low-level output voltage
0.4
V
OL
V
= 5.25 V (see Note 3),
DD
All other terminals are floating
I
I
Input current
±10
±10
µA
µA
I
Clock input current
V = 0 to 5.25 V
I
I(CLK)
OZ
V
V
= 5.25 V,
V
= 0 with chip deselected or
DD
O
O
I
I
High-impedance output current
Supply current
±20
µA
= 5.25 V with chip and write mode selected (see Note 2)
V
DD
= 5.25 V,
No loads on outputs,
f = 8 MHz
clock
50
mA
DD
Inputs at 0.8 V or 2 V,
NOTES: 2. Excluding INIT, AFD, STB, and SLIN. They are open-drain terminals with an internal pullup resistor to V
of approximately 10 KΩ.
DD
3. Excluding the TRI input terminal. It contains an internal pulldown resistor of approximately 5 kΩ.
clocktimingrequirementsoverrecommendedrangesofoperatingfree-airtemperatureandsupply
voltage
MIN
31
MAX
UNIT
ns
t
t
t
Pulse duration, CLK ↑ (external clock) (see Figure 1)
Pulse duration, CLK ↓ (external clock) (see Figure 1)
Pulse duration, RESET
w1
w2
w3
31
ns
1000
ns
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
