9-bit D-type flip-flop with reset and enable
(3-State)
FEA TURES
•High speed parallel registers with positive edge-triggered D-type
flip-flops
•Ideal where high speed, light loading, or increased fan-in are
required with MOS microprocessors
•Output capability: +64mA/–32mA
•Latch-up protection exceeds 500mA per Jedec Std 17
•ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200 V per Machine Model
•Power-up 3-State
•Power-up Reset
QUICK REFERENCE DAT A
SYMBOLPARAMETER
C
t
PLH
t
PHL
C
OUT
I
CCZ
IN
Propagation delay
CP to Qn
CL = 50pF; VCC = 5V4.4ns
Input capacitanceVI = 0V or V
Output capacitance
Outputs disabled;
= 0V or V
V
O
Total supply currentOutputs disabled; VCC =5.5V500nA
74ABT823
DESCRIPTION
The 74ABT823 Bus interface Register is designed to eliminate the
extra packages required to buffer existing registers and provide
extra data width for wider data/address paths of buses carrying
parity.
The 74ABT823 is a 9-bit wide buffered register with Clock Enable
(CE
) and Master Reset (MR) which are ideal for parity bus
interfacing in high microprogrammed systems.
The register is fully edge-triggered. The state of each D input, one
set-up time before the Low-to-High clock transition is transferred to
the corresponding flip-flop’s Q output.
CONDITIONS
= 25°C; GND = 0V
T
amb
CC
CC
TYPICALUNIT
4pF
7pF
ORDERING INFORMATION
PACKAGESTEMPERATURE RANGE OUTSIDE NORTH AMERICANORTH AMERICADWG NUMBER
24-Pin Plastic DIP–40°C to +85°C74ABT823 N74ABT823 NSOT222-1
24-Pin plastic SO–40°C to +85°C74ABT823 D74ABT823 DSOT137-1
24-Pin Plastic SSOP Type II–40°C to +85°C74ABT823 DB74ABT823 DBSOT340-1
24-Pin Plastic TSSOP Type I–40°C to +85°C74ABT823 PW74ABT823PW DHSOT355-1
PIN CONFIGURA TION
1
OE
2
D0
3
D1
4
D2
5
D3
6
D4
7
D5
8
D6
9
D7Q7
1015
D8
1114MR
1213GND
TOP VIEW
24
V
CC
Q0
23
Q1
22
Q2
21
Q3
20
Q4
19
Q5
18
Q6
17
16
Q8
CE
CP
PIN DESCRIPTION
PIN NUMBERSYMBOLFUNCTION
1OE
2, 3, 4, 5, 6,
7, 8, 9, 10
23, 22, 21, 20,
19,18, 17, 16, 15
D0-D8Data inputs
Q0-Q8Data outputs
13CP
14CE
11MR
12GNDGround (0V)
24V
CC
Output enable input
(active-Low)
Clock pulse input (active
rising edge)
Clock enable input
(active-Low)
Master reset input
(active-Low)
Positive supply voltage
SA00227
1995 Sep 06853–1617 15703
1
Page 2
Philips Semiconductors Product specification
9-bit D-type flip-flop with reset and enable
(3-State)
LOGIC SYMBOL
2345678910
D0 D1 D2 D3 D4 D5 D6 D7 D8
13
CP
14
CE
11
MR
1
OE
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8
23 22 21 20 19 18 17 16 15
SA00228
LOGIC SYMBOL (IEEE/IEC)
1
11
14
13
1015
EN
R
G1
1C2
223
2D
322
421
520
619
718
817
916
74ABT823
SA00229
FUNCTION TABLE
INPUTSOUTPUTSOPERATING MODE
OEMRCECPDnQ0 – Q8
LLXXXLClear
LHL↑hHLoad and read data
LHL↑lL
LHH↑XNCHold
HXXXXZHigh impedance
H= High voltage level
h= High voltage level one set-up time prior to the Low-to-High
clock transition
L= Low voltage level
l= Low voltage level one set-up time prior to the Low-to-High
NC = No change
X= Don’t care
Z= High impedance “off” state
↑= Low to High clock transition
↑
clock transition
LOGIC DIAGRAM
14
CE
CP
D0
13
D
RQ
D1
2
CPCPCPCPCPCPCPCPCP
3
D
RQ
D2
4
D
RQ
D3
5
D
RR Q
= Not a Low-to-High clock transition
D4
D
RQ
6
D5
D
RQ
7
D6
8
D
RQ
D7
9
D
RQ
D8
10
D
RQ
1995 Sep 06
MR
OE
11
1
23
Q0
Q1
22
Q2
21
Q3
20
Q4
19
Q5
18
Q6
17
Q7
16
15
Q8
SA00230
2
Page 3
Philips Semiconductors Product specification
9-bit D-type flip-flop with reset and enable
(3-State)
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
I
V
I
V
I
OK
OUT
OUT
T
CC
IK
stg
DC supply voltage–0.5 to +7.0V
DC input diode currentVI < 0–18mA
DC input voltage
I
DC output diode currentVO < 0–50mA
DC output voltage
DC output currentoutput in Low state128mA
Storage temperature range–65 to 150°C
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.
High-level output voltageVCC = 5.0V; IOH = –3mA; VI = VIL or V
OH
VCC = 4.5V; IOH = –32mA; VI = VIL or V
Low-level output voltageVCC = 4.5V; IOL = 64mA; VI = VIL or V
OL
Power-up output low
3
voltage
I
Input leakage currentVCC = 5.5V; VI = GND or 5.5V±0.01±1.0±1.0µA
I
VCC = 5.5V; IO = 1mA; VI = GND or V
IH
IH
IH
IH
CC
Power-off leakage currentVCC = 0.0V; VO or VI ≤ 4.5V±5.0±100±100µA
Power-up/down 3-State
PD
output current
4
3-State output High currentVCC = 5.5V; VO = 2.7V; VI = VIL or V
3-State output Low currentVCC = 5.5V; VO = 0.5V; VI = VIL or V
Output High leakage currentVCC = 5.5V; VO = 5.5V; VI = GND or V
O
Output current
1
Quiescent supply currentVCC = 5.5V; Outputs Low, VI = GND or V
VCC = 2.0V; VO = 0.5V; VOE = VCC;
= GND or V
V
I
CC
IH
IH
CC
VCC = 5.5V; VO = 2.5V–50–100–180–50–180mA
VCC = 5.5V; Outputs High, VI = GND or V
CC
CC
VCC = 5.5V; Outputs 3-State;
= GND or V
V
Additional supply current per
CC
input pin
2
I
VCC = 5.5V; one input at 3.4V,
other inputs at V
CC
or GND
CC
NOTES:
1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
2. This is the increase in supply current for each input at 3.4V.
3. For valid test results, data must not be loaded into the flip-flops (or latches) after applying the power.
4. This parameter is valid for any V
transition time of up to 100µsec is permitted.
between 0V and 2.1V with a transition time of up to 10msec. For VCC = 2.1V to VCC = 5V 10%, a
CC
= +25°C
amb
2.52.92.5V
3.03.43.0V
2.02.42.0V
0.420.550.55V
0.130.550.55V
±5.0±50±50µA
5.05050µA
–5.0–50–50µA
5.05050µA
0.5250250µA
273434mA
0.5250250µA
0.51.51.5mA
74ABT823
T
= –40°C
amb
to +85°C
UNIT
AC CHARACTERISTICS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω
SYMBOLPARAMETERWAVEFORM
f
MAX
t
PLH
t
PHL
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
1995 Sep 06
Maximum clock frequency1125200125MHz
Propagation delay
CP to Qn
Propagation delay
to Qn
MR
Output enable time
to High and Low level
Output disable time
from High and Low level
1
22.04.16.32.07.1ns
4
5
4
5
LIMITS
T
T
amb
V
= +25oC
= +5.0V
CC
amb
= +5.0V ±0.5V
V
CC
MinTypMaxMinMax
2.1
2.2
1.0
2.2
2.7
2.8
4.3
4.4
3.0
4.1
4.8
5.0
5.9
6.1
4.5
5.6
6.2
6.4
2.1
2.2
1.0
2.2
2.7
2.8
4
= -40 to
o
C
+85
6.8
6.7
5.3
6.3
6.9
6.9
UNIT
ns
ns
ns
Page 5
Philips Semiconductors Product specification
9-bit D-type flip-flop with reset and enable
(3-State)
AC SETUP REQUIREMENTS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω
LIMITS
T
= +25oC
SYMBOLPARAMETERWAVEFORM
ts(H)
(L)
t
s
th(H)
(L)
t
h
tw(H)
(L)
t
w
ts(H)
(L)
t
s
th(H)
(L)
t
h
tw(L)MR pulse width, Low25.54.05.5ns
t
rec
Setup time, High or Low
Dn to CP
Hold time, High or Low
Dn to CP
CP pulse width
High or Low
Setup time, High or Low
to CP
CE
Hold time, High or Low
to CP
CE
Recovery time
to CP
MR
3
3
1
3
3
22.50.62.5ns
amb
= +5.0V
V
CC
MinTypMin
2.1
2.1
1.3
1.3
2.9
3.8
2.0
3.3
1.0
2.0
0.5
0.2
0.0
–0.3
1.9
2.8
–0.5
1.5
–1.4
0.7
T
= -40 to +85oC
amb
= +5.0V ±0.5V
V
CC
2.1
2.1
1.3
1.3
2.9
3.8
2.0
3.3
1.0
2.0
74ABT823
UNIT
ns
ns
ns
ns
ns
1995 Sep 06
5
Page 6
Philips Semiconductors Product specification
9-bit D-type flip-flop with reset and enable
(3-State)
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
1/f
MAX
CP
Q
n
V
M
tW(H)tW(L)
t
PHL
V
M
Waveform 1. Propagation Delay, Clock Input to Output, Clock
Pulse Width, and Maximum Clock Frequency
Dn, CE
CP
V
V
M
M
(H)th(H)ts(L)th(L)
t
s
V
M
t
PLH
V
M
V
MVM
V
M
SA00159
V
M
74ABT823
MR
CP
Qn
V
M
t
PHL
Waveform 2. Master Reset Pulse WIdth, Master Reset to Output
Delay and Master Reset to Clock Recovery Time
OE
Qn
V
M
t
PZH
V
M
(L)
t
w
V
M
V
M
t
PHZ
V
M
t
REC
V
M
SA00232
VOH–0.3V
0V
NOTE: The shaded areas indicate when the input is permitted to change for
predictable output performance.
SA00231
Waveform 3. Data Setup and Hold Times
OE
Qn
V
M
t
PZL
V
M
t
PLZ
V
M
VOL+0.3V
0V
SA00067
Waveform 5. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
SA00066
Waveform 4. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
1995 Sep 06
6
Page 7
Philips Semiconductors Product specification
9-bit D-type flip-flop with reset and enable
(3-State)
TEST CIRCUIT AND WAVEFORM
V
CC
R
OUT
L
R
L
of
PULSE
GENERATOR
V
IN
R
D.U.T.
T
V
OUT
C
L
Test Circuit for 3-State Outputs
SWITCH POSITION
TESTSWITCH
t
PLZ
t
PZL
closed
closed
All otheropen
DEFINITIONS
RL = Load resistor; see AC CHARACTERISTICS for value.
= Load capacitance includes jig and probe capacitance;
C
L
see AC CHARACTERISTICS for value.
= Termination resistance should be equal to Z
R
T
pulse generators.
74ABT823
t
90%
7.0V
NEGATIVE
PULSE
POSITIVE
PULSE
10%
V
M
10%10%
t
THL
t
TLH
90%90%
V
M
Input Pulse Definition
INPUT PULSE REQUIREMENTS
FAMILY
AmplitudeRep. Ratet
74ABT3.0V1MHz500ns 2.5ns 2.5ns
W
(tF)
(tR)t
t
W
90%
V
M
V
M
10%
VM = 1.5V
t
W
AMP (V)
0V
t
(tR)
TLH
(tF)
THL
AMP (V)
0V
t
R
F
SA00012
1995 Sep 06
7
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