74lv245db NXP Semiconductors, 74lv245db Datasheet - Page 2

• Manufacturer Part Number: 74lv245db
• Description: Octal Bus Transceiver 3-state
• Manufacturer: NXP Semiconductors

1. C
Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
GND = 0 V; T
NOTE:
ORDERING INFORMATION
PIN DESCRIPTION
t
C
C
C
20-Pin Plastic DIL
20-Pin Plastic SO
20-Pin Plastic SSOP Type II
20-Pin Plastic TSSOP Type I
1
2, 3, 4, 5,
6, 7, 8, 9
10
18, 17, 16, 15,
14, 13, 12, 11
19
20
1998 Apr 20
PHL
SYMBOL
Wide operating voltage: 1.0 to 5.5 V
Optimized for low voltage applications: 1.0 to 3.6 V
Accepts TTL input levels between V
Typical V
T
Typical V
T
Output capability: bus driver
I
PIN NUMBER
Octal bus transceiver (3-State)
I
I/O
PD
CC
P
f
f
amb
amb
i
o
PD
D
= input frequency in MHz; C
/t
= output frequency in MHz; V
(C
category: MSI
PLH
= C
= 25 C
= 25 C
L
is used to determine the dynamic power dissipation (P
PD
OLP
OHV
V
PACKAGES
amb
CC
Propagation delay
A
Input capacitance
Input/output capacitance
Power dissipation capacitance per buffer
(output ground bounce) < 0.8 V at V
(output V
n
V
2
= 25 C; t
to B
CC
DIR
A
GND
B
OE
V
SYMBOL
2
f
0
0
CC
n
o
; B
) = sum of the outputs.
to A
to B
OH
f
n
i
r
) (C
7
to A
7
= t
undershoot) > 2 V at V
PARAMETER
f
n
Direction
Data inputs/outputs
Ground (0 V)
Data inputs/outputs
Output enable input (active LOW)
Positive supply voltage
2.5 ns
L
L
= output load capacitance in pF;
CC
CC
= supply voltage in V;
V
TEMPERATURE RANGE
CC
= 2.7 V and V
2
–40 C to +125 C
–40 C to +125 C
–40 C to +125 C
–40 C to +125 C
FUNCTION
f
o
) where:
CC
CC
= 3.3 V,
= 3.3 V,
CC
= 3.6 V
C
V
V
V
D
L
CC
CC
I
= GND to V
= 15 pF;
in W)
= 3.3 V
= 3.3 V
OUTSIDE NORTH AMERICA
2
CONDITIONS
H =
L =
X =
Z =
DESCRIPTION
The 74LV245 is a low-voltage Si-gate CMOS device and is pin and
function compatible with 74HC/HCT245.
The 74LV245 is an octal transceiver featuring non-inverting 3-State
bus compatible outputs in both send and receive directions. The
74LV245 features an output enable (OE) input for easy cascading
and a send/receive (DIR) input for direction control. OE controls the
outputs so that the buses are effectively isolated.
CC
FUNCTION TABLE
NOTES:
74LV245 DB
74LV245 PW
, note 1
74LV245 N
74LV245 D
OE
H
L
L
HIGH voltage level
LOW voltage level
don’t care
high impedance OFF-state
INPUTS
DIR
H
X
L
NORTH AMERICA
74LV245PW DH
74LV245 DB
74LV245 N
74LV245 D
TYPICAL
7.0
3.5
10
40
Inputs
A = B
A
Z
INPUTS/OUTPUT
n
Product specification
853–1931 19258
74LV245
PKG. DWG. #
SOT146-1
SOT163-1
SOT339-1
SOT360-1
Inputs
UNIT
B = A
pF
pF
pF
ns
B
Z
n