Philips Semiconductors
Product specification
2.5V/3.3V 18-bit universal bus transceiver (3-State)
74ALVT16600
FEATURES
•
18-bit bidirectional bus interface
•
5V I/O Compatible
•
3-State buffers
•
Output capability: +64mA/-32mA
•
TTL input and output switching levels
•
Input and output interface capability to systems at 5V supply
•
Bus-hold data inputs eliminate the need for external pull-up
•
Live insertion/extraction permitted
•
Power-up reset
•
Power-up 3-State
•
No bus current loading when output is tied to 5V bus
•
Negative edge-triggered clock inputs
•
Latch-up protection exceeds 500mA per JEDEC JC40.2 Std 17
•
ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
resistors to hold unused inputs
DESCRIPTION
The 74ALVT16600 is a high-performance BiCMOS product
designed for V
CC
operation at 2.5V and 3.3V with I/O compatibility
up to 5V.
This device is an 18-bit universal transceiver featuring non-inverting
3-State bus compatible outputs in both send and receive directions.
Data flow in each direction is controlled by output enable (OEAB and
OEBA), latch enable (LEAB and LEBA), and clock (CPAB and
CPBA) inputs. For A-to-B data flow, the device operates in the
transparent mode when LEAB is High. When LEAB is Low, the A
data is latched if CPAB is held at a High or Low logic level. If LEAB
is Low, the A-bus data is stored in the latch/flip-flop on the
High-to-Low transition of CPAB. When OEAB is Low, the outputs are
active. When OEAB is High, the outputs are in the high-impedance
state. The High clock can be controlled with the clock-enable inputs
(CEBA/CEAB).
Data flow for B-to-A is similar to that of A-to-B but uses OEBA,
LEBA and CPBA.
Active bus-hold circuitry is provided to hold unused or floating data
inputs at a valid logic level.
QUICK REFERENCE DATA
SYMBOL
t
PLH
t
PHL
C
IN
C
I/O
I
CCZ
PARAMETER
Propagation delay
An to Bn or Bn to An
Input capacitance DIR, OE
I/O pin capacitance
Total supply current
C
L
= 50pF
V
I
= 0V or V
CC
Outputs disabled; V
I/O
= 0V or V
CC
Outputs disabled
CONDITIONS
T
amb
= 25°C
TYPICAL
UNIT
2.5V
1.9
2.5
4
8
40
3.3V
1.6
1.9
4
8
70
ns
pF
pF
µA
ORDERING INFORMATION
PACKAGES
56-Pin Plastic SSOP Type III
56-Pin Plastic TSSOP Type II
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
OUTSIDE NORTH AMERICA
74ALVT16600 DL
74ALVT16600 DGG
NORTH AMERICA
AV16600 DL
AV16600 DGG
DWG NUMBER
SOT371-1
SOT364-1
PIN DESCRIPTION
PIN NUMBER
1, 27
29, 56
2, 28
55,30
3, 5, 6, 8, 9, 10, 12, 13, 14, 15,
16, 17, 19, 20, 21, 23, 24, 26
54, 52, 51, 49, 48, 47, 45, 44, 43,
42, 41, 40, 38, 37, 36, 34, 33, 31
4, 11, 18, 25, 32, 39, 46, 53
7, 22, 35, 50
SYMBOL
OEAB/OEBA
CEBA/CEAB
LEAB/LEBA
CPAB/CPBA
A0-A17
B0-B17
GND
V
CC
NAME AND FUNCTION
A-to-B Output enable input (active Low)
B-to-A / A-to-B clock enable (active Low)
A-to-B/B-to-A Latch enable input
A-to-B/B-to-A Clock input (active falling edge)
Data inputs/outputs (A side)
Data inputs/outputs (B side)
Ground (0V)
Positive supply voltage
1998 Feb 13
2
853-1979 18958
Philips Semiconductors
Product specification
2.5V/3.3V 18-bit universal bus transceiver (3-State)
74ALVT16600
LOGIC DIAGRAM (Positive Logic)
OEAB
1
CEAB
56
CPAB
55
LEAB
2
LEBA
28
CPBA
30
CEBA
29
OEBA
27
CE
A0
3
ID
C1
CLK
CE
ID
C1
CLK
54
B0
To 17 other channels
SW00190
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
V
CC
I
IK
V
I
I
OK
V
OUT
I
O
OUT
T
stg
PARAMETER
DC supply voltage
DC input diode current
DC input voltage
3
DC output diode current
DC output voltage
3
DC output current
Output in High state
Storage temperature range
–64
–65 to +150
°C
V
O
< 0
Output in Off or High state
Output in Low state
V
I
< 0
CONDITIONS
RATING
–0.5 to +4.6
–50
–0.5 to +7.0
–50
–0.5 to +7.0
128
mA
UNIT
V
mA
V
mA
V
NOTES:
1. Stresses beyond those listed 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.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
1998 Feb 13
4
Philips Semiconductors
Product specification
2.5V/3.3V 18-bit universal bus transceiver (3-State)
74ALVT16600
RECOMMENDED OPERATING CONDITIONS
SYMBOL
V
CC
V
I
V
IH
V
IL
I
OH
I
OL
∆t/∆v
T
amb
DC supply voltage
Input voltage
High-level input voltage
Input voltage
High-level output current
Low-level output current
Low-level output current; current duty cycle
≤
50%; f
≥
1kHz
Input transition rise or fall rate; Outputs enabled
Operating free-air temperature range
–40
PARAMETER
2.5V RANGE LIMITS
MIN
2.3
0
1.7
0.7
–8
8
24
10
+85
–40
MAX
2.7
5.5
3.3V RANGE LIMITS
MIN
3.0
0
2.0
0.8
–32
32
64
10
+85
MAX
3.6
5.5
UNIT
V
V
V
V
mA
mA
ns/V
°C
DC ELECTRICAL CHARACTERISTICS (3.3V
"0.3V
RANGE)
LIMITS
SYMBOL
V
IK
V
OH
PARAMETER
Input clamp voltage
High-level out ut voltage
output
TEST CONDITIONS
V
CC
= 3.0V; I
IK
= –18mA
V
CC
= 3.0 to 3.6V; I
OH
= –100µA
V
CC
= 3.0V; I
OH
= –32mA
V
CC
= 3.0V; I
OL
= 100µA
V
OL
Low–level output voltage
V
CC
= 3.0V; I
OL
= 16mA
V
CC
= 3.0V; I
OL
= 32mA
V
CC
= 3.0V; I
OL
= 64mA
V
RST
Power-up output low voltage
6
V
CC
= 3.6V; I
O
= 1mA; V
I
= V
CC
or GND
V
CC
= 3.6V; V
I
= V
CC
or GND
V
CC
= 0 or 3.6V; V
I
= 5.5V
I
I
Input leakage current
V
CC
= 3.6V; V
I
= 5.5V
V
CC
= 3.6V; V
I
= V
CC
V
CC
= 3.6V; V
I
= 0V
I
OFF
I
HOLD
Off current
Bus Hold current
Data inputs
7
Current into an output in the
High state when V
O
> V
CC
Power up/down 3-State output
current
3
Quiescent supply current
Additional supply current per
input pin
2
V
CC
= 0V; V
I
or V
O
= 0 to 4.5V
V
CC
= 3V; V
I
= 0.8V
V
CC
= 3V; V
I
= 2.0V
V
CC
= 0V to 3.6V; V
CC
= 3.6V
V
O
= 5.5V; V
CC
= 3.0V
V
CC
≤
1.2V; V
O
= 0.5V to V
CC
; V
I
= GND or V
CC
OE = Don’t care
V
CC
= 3.6V; Outputs High, V
I
= GND or V
CC,
I
O =
0
V
CC
= 3.6V; Outputs Low, V
I
= GND or V
CC,
I
O =
0
V
CC
= 3.6V; Outputs Disabled; V
I
= GND or V
CC,
I
O =
V
CC
= 3V to 3.6V; One input at V
CC
–0.6V,
Other inputs at V
CC
or GND
0
5
75
–75
±500
10
1.0
0.06
4.0
0.06
0.04
125
±100
0.1
5
0.1
0.4
mA
mA
µA
µA
Data
pins
4
Control pins
0.1
0.1
0.1
0.5
0.1
0.1
130
–140
µA
V
CC
–0.2
2.0
Temp = -40°C to +85°C
MIN
TYP
1
–0.85
V
CC
2.3
0.07
0.25
0.3
0.4
0.2
0.4
0.5
0.55
0.55
±1
10
20
10
-5
±100
µA
µA
V
V
MAX
–1.2
V
V
UNIT
I
EX
I
PU/PD
I
CCH
I
CCL
I
CCZ
∆I
CC
NOTES:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25°C.
2. This is the increase in supply current for each input at the specified voltage level other than V
CC
or GND
3. This parameter is valid for any V
CC
between 0V and 1.2V with a transition time of up to 10msec. From V
CC
= 1.2V to V
CC
= 3.3V
±
0.3V a
transition time of 100µsec is permitted. This parameter is valid for T
amb
= 25°C only.
4. Unused pins at V
CC
or GND.
5. I
CCZ
is measured with outputs pulled up to V
CC
or pulled down to ground.
6. For valid test results, data must not be loaded into the flip-flops (or latches) after applying power.
7. This is the bus hold overdrive current required to force the input to the opposite logic state.
1998 Feb 13
5
传感器
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