Philips 74LVT16646ADGG, 74LVT16646ADL Datasheet

74LVT16646A
3.3V ABT 16-bit bus transceiver (3-State)
Product specification Supersedes data of 1994 Jul 25 IC23 Data Handbook
 
1998 Feb 19
Philips Semiconductors Product specification
74L VT16646A3.3V 16-bit bus transceiver (3-State)
FEA TURES
16-bit universal bus interface
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
resistors to hold unused inputs
Live insertion/extraction permitted
No bus current loading when output is tied to 5V bus
Power-up reset
Power-up 3-State
Latch-up protection exceeds 500mA per JEDEC Std 17
ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
QUICK REFERENCE DATA
SYMBOL PARAMETER
t
PLH
t
PHL
C C I
CCZ
IN
I/O
Propagation delay nAx to nBx or nBx to nAx
Input capacitance VI = 0V or 3.0V 3 pF I/O pin capacitance Outputs disabled; V Total supply current Outputs disabled; VCC = 3.6V 70 µA
CL = 50pF; VCC = 3.3V
DESCRIPTION
The 74LVT16646A is a high-performance BiCMOS product designed for V This device is a 16-bit transceiver featuring non-inverting 3-State bus compatible outputs in both send and receive directions. The control function implementation minimizes external timing requirements. The device features an Output Enable (OE easy cascading and a Direction (DIR) input for direction control.
Data on the A or B bus is clocked into the registers on the Low to High transition of the appropriate clock (CPAB or CPBA). The select-control (SAB and SBA) inputs can multiplex stored and real-time (transparent mode data).
CONDITIONS
T
amb
operation at 3.3V .
CC
= 25°C
TYPICAL UNIT
1.9 ns
= 0V or 3.0V 9 pF
I/O
) input for
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
56-Pin Plastic SSOP Type III –40°C to +85°C 74LVT166646A DL VT16646A DL SOT371-1 56-Pin Plastic TSSOP Type II –40°C to +85°C 74LVT16646A DGG VT16646A DGG SOT364-1
LOGIC SYMBOL (IEEE/IEC)
56
1
54
3
55
2
5
6
8
9
10
12 13
14
G3 3EN1 [BA] 3EN2 [AB] G6 G7 C4 C5
1
1
5D 7 17
64D
1
6
1
2
29
28 31 26 31 27
52
15
51
16
49
17
48
19
47
20
45
21
44
23
43
24
G10 10EN8 [BA] 10EN9 [AB] G13 G14
C11
C12
18
12D 14
114
13 11D
1
13
1
9
42
41
40 38
37
36 34
33
SW00157
1998 Feb 19 853-1760 18986
2
Philips Semiconductors Product specification
74LVT16646A3.3V 16-bit bus transceiver (3-State)
PIN CONFIGURATION
1
1DIR
2
1CPAB
1SAB
3
GND
4
1A0
5
1A1
6 7
V
CC
8
1A2 1A3
9
1A4
10
GND
11
1A5
12
1A6
13
1A7
14
2A0
15 16
2A1 2A2
17
GND
18
2A3
19 20
2A4
21
2A5
22
V
CC
23
2A6
24
2A7
GND
25 26
2SAB
27
2CPAB
28
2DIR
SH00026
LOGIC SYMBOL
56
1OE
55
1CPBA 1SBA
54
GND
53
1B0
52
1B1
51 50
V
CC
49
1B2 1B3
48
1B4
47
GND
46
1B5
45
1B6
44
1B7
43
2B0
42 41
2B1 2B2
40
GND
39
2B3
38 37
2B4
36
2B5
35
V
CC
34
2B6
33
2B7 GND
32 31
2SBA
30
2CPBA
29
20E
2 3
1 1DIR 55 1CPBA 54 1SBA 56 1OE
27 26 28 2DIR 30 2CPBA 31 2SBA 29 2OE
5 9 10 12 13 1468
1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7 1CPAB
1SAB
1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7
52 51 49 48 47 45 44 43
15 16 17 19 20 21 23 24
2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7 2CPAB
2SAB
2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7
42 41 40 38 37 36 34 33
SH00027
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
2, 55, 27, 30 1CPAB, 1CPBA, 2CPAB, 2CPBA Clock input A to B / Clock input B to A 3, 54, 26, 31 1SAB, 1SBA, 2SAB, 2SBA Select input A to B / Select input B to A
1, 28 1DIR, 2DIR Direction control inputs
5, 6, 8, 9, 10, 12, 13, 14
15, 16, 17, 19, 20, 21, 23, 24 52, 51, 49, 48, 47, 45, 44, 43
42, 41, 40, 38, 37, 36, 34, 33
56, 29 1OE, 2OE Output enable inputs
4, 11, 18, 25, 32, 39, 46, 53 GND Ground (0V)
7, 22, 35, 50 V
1998 Feb 19
1A0 - 1A7,
2A0 - 2A7
1B0 - 1B7,
2B0 - 2B7
CC
3
Data inputs/outputs (A side)
Data inputs/outputs (B side)
Positive supply voltage
Philips Semiconductors Product specification
74LVT16646A3.3V 16-bit bus transceiver (3-State)
The following examples demonstrate the four fundamental bus-management functions that can be performed with the 74LVT16646A.
REAL TIME BUS TRANSFER
BUS B TO BUS A
ABAB AB
REAL TIME BUS TRANSFER
BUS A TO BUS B
STORAGE FROM
A, B, OR A AND B
}
nOE nDIR nCPAB nCPBA nSAB nSBA
LLXXXL
}
nOE nDIR nCPAB nCPBA nSAB nSBA
LH X X LX
TRANSFER STORED DA TA
TO A OR B
AB
}
nOE nDIR nCPAB nCPBA nSAB nSBA
LH XXX LL X XX HX ↑↑XX
1998 Feb 19
}
nOE nDIR nCPAB nCPBA nSAB nSBA
L L X H | L X H L H H | L X H X
SH00028
4
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