|
|
Part: 74ABT651D
Category:
Logic
-> Transceivers
-> Registered transceivers
Description: 74ABT651; Octal Transceiver/register, Inverting (3-State);; Package: SOT137-1 (SO24), SOT222-1 (DIP24), SOT355-1 (TSSOP24)
Company: Philips Semiconductors
Datasheet: Download 74ABT651D datasheet File size : 294 kB
Request For quote: Find where to buy 74ABT651D
Datasheet text preview:
INTEGRATED CIRCUITS
74ABT651 Octal transceiver/register, inverting (3-State)
Product data Supersedes data of 1995 Sep 06 2002 Dec 17
Philips Semiconductors
Philips Semiconductors
Product data
Octal transceiver/register, inverting (3-State)
74ABT651
FEATURES
· Independent registers for A and B buses · The 74ABT651 is the inverting version of the 74ABT652 · Multiplexed real-time and stored data · 3-State outputs · Live insertion/extraction permitted. · Power-up 3-State · Power-up reset · Output capability: +64 mA / 32 mA · Latch-up protection exceeds 500 mA per Jedec Std 17 · ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200 V per Machine Model
DESCRIPTION
The 74ABT651 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. The 74ABT651 transceiver/register consists of bus transceiver circuits with 3-State outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or the internal registers. Data on the A or B bus will be clocked into the registers as the appropriate clock pin goes HIGH. Output Enable (OEAB, OEBA) and Select (SAB, SBA) pins are provided for bus management. The following examples demonstrate the four fundamental bus-management functions that can be performed with the 74ABT651. The select pins determine whether data is stored or transferred through the device in real time. The output enable pins determine the direction of the data flow.
QUICK REFERENCE DATA
SYMBOL tPLH tPHL CIN CI/O ICCZ PARAMETER Propagation delay CPBA to An or CPAB to Bn Input capacitance I/O capacitance Total supply current CONDITIONS Tamb = 25 °C; GND = 0 V CL = 50 pF; VCC = 5 V VI = 0 V or VCC Outputs disabled; VO = 0 V or VCC Outputs disabled; VCC = 5.5 V TYPICAL 3.8 4.4 4 7 110 UNIT ns pF pF µA
ORDERING INFORMATION
PACKAGES 24-Pin Plastic DIP 24-Pin plastic SO 24-Pin Plastic TSSOP Type I TEMPERATURE RANGE 40 °C to +85 °C 40 °C to +85 °C 40 °C to +85 °C PART NUMBER 74ABT651N 74ABT651D 74ABT651PW DWG NUMBER SOT222-1 SOT137-1 SOT355-1
PIN CONFIGURATION
CPAB SAB OEAB A0 A1 A2 A3 A4 A5 A6 A7 GND 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VCC CPBA SBA OEBA B0 B1 B2 B3 B4 B5 B6 B7
PIN DESCRIPTION
PIN NUMBER 1, 23 2, 22 3, 21 4, 5, 6, 7, 8, 9, 10, 11 20, 19, 18, 17, 16, 15, 14, 13 12 24 SYMBOL CPAB / CPBA SAB / SBA OEAB / OEBA A0 A7 B0 B7 GND VCC FUNCTION A to B clock input / B to A clock input A to B select input / B to A select input A to B Output Enable input / B to A Output Enable input (activeLOW) Data inputs/outputs (A side) Data inputs/outputs (B side) Ground (0 V) Positive supply voltage
SA00094
2002 Dec 17
2
Philips Semiconductors
Product data
Octal transceiver/register, inverting (3-State)
74ABT651
LOGIC SYMBOL (IEEE/IEC)
LOGIC SYMBOL
21 3 23 22 1 2
EN1 [BA] EN2 [AB] C4 G5 C6 G7 23 22
4
5
6
7
8
9
10
11
A0
A1
A2
A3
A4
A5
A6
A7
CPBA SBA SAB CPAB OEAB OEBA 3 21
4
w1 1 D7 6 1 7
5 51
4D
20
2 1
w1 2 19 18
B0
B1
B2
B3
B4
B5
B6
B7
5 6 7 8 9 10 11
20
19
18
17
16
15
14
13
SA00095
17 16 15 14 13
SA00125
REAL TIME BUS TRANSFER BUS B TO BUS A
REAL TIME BUS TRANSFER BUS A TO BUS B
STORAGE FROM A, B, OR A AND B
TRANSFER STORED DATA TO A OR B
A
B
A
B
A
B
A
B
OEAB OEBA CPAB CPBA SAB SBA L L X X X L
}
H H
OEAB OEBA CPAB CPBA SAB SBA X X L X
}
X L L H X H
OEAB OEBA CPAB CPBA SAB SBA X X X X X X X X
}
H L
OEAB OEBA CPAB CPBA SAB SBA H|L H|L H H
}
SA00097
2002 Dec 17
3
Philips Semiconductors
Product data
Octal transceiver/register, inverting (3-State)
74ABT651
FUNCTION TABLE
INPUTS OEAB L L X H L L L L H H H H L X * ** = = = = OEBA H H H H X L L L H H L CPAB H or L H or L X X X H or L H or L CPBA H or L H or L X H or L X X H or L SAB X X X ** X X X X L H H SBA X X X X X ** L H X X H An Input Input Unspecified output* Output Input Output DATA I/O Bn Input Unspecified output* Input Input Output Output OPERATING MODE MODE Isolation Store A and B data Store A, Hold B Store A in both registers Hold A, Store B Store B in both registers Real time B data to A bus Stored B data to A bus Real time A data to B bus Store A data to B bus Stored A data to B bus Stored B data to A bus
HIGH voltage level LOW voltage level Don't care LOW-to-HIGH clock transition The data output function may be enabled or disabled by various signals at the OEBA and OEAB inputs. Data input functions are always enabled, i.e., data at the bus pins will be stored on every LOW-to-HIGH transition of the clock. If both Select controls (SAB and SBA) are LOW, then clocks can occur simultaneously. If either Select control is HIGH, the clocks must be staggered in order to load both registers.
LOGIC DIAGRAM
21 OEBA 3 OEAB 23 CPBA 22 SBA 1 CPAB 2 SAB
1of 8 Channels
1D C1 Q
A0
4 1D C1 Q
20
B0
A1 A2 A3 A4 A5 A6 A7
5 6 7 8 9 10 11 DETAIL A X 7
19 18 17 16 15 14 13
B1 B2 B3 B4 B5 B6 B7
SA00098
2002 Dec 17
4
Philips Semiconductors
Product data
Octal transceiver/register, inverting (3-State)
74ABT651
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL VCC IIK VI IOK VOUT IOUT Tstg PARAMETER DC supply voltage DC input diode current DC input voltage3 VO < 0 V output in Off or HIGH state output in LOW state VI < 0 V CONDITIONS RATING 0.5 to +7.0 18 1.2 to +7.0 50 0.5 to +5.5 128 65 to 150 UNIT V mA V mA V mA °C
DC output diode current DC output voltage3
DC output current Storage temperature range
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 voltage ratings may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
LIMITS SYMBOL VCC VI VIH VIL IOH IOL t/v Tamb DC supply voltage Input voltage HIGH-level input voltage LOW-level Input voltage HIGH-level output current LOW-level output current Input transition rise or fall rate Operating free-air temperature range 0 40 PARAMETER Min 4.5 0 2.0 0.8 32 64 10 +85 Max 5.5 VCC V V V V mA mA ns/V °C UNIT
2002 Dec 17
5
Others parts begin by 74
74-1 74-2 74-3 74-4 74-5 74-6 74-7 74-8 74-9 74-10 74-11 74-12 74-13 74-14 74-15 74-16 74-17 74-18 74-19 74-20 74-21 74-22 74-23 74-24 74-25 74-26 74-27 74-28 74-29 74-30 74-31 74-32 74-33 74-34 74-35 74-36 74-37 74-38 74-39 74-40 74-41 74-42 74-43 74-44 74-45 74-46 74-47 74-48 74-49 74-50 74-51 74-52 74-53 74-54 74-55 74-56 74-57 74-58 74-59 74-60 74-61 74-62
|
|
|
