Product specification
Supersedes data of October 1990
File under Integrated Circuits, IC06
September 1993
Philips SemiconductorsProduct specification
5-Bit x 64-word FIFO register; 3-state74HC/HCT7404
FEATURES
• Synchronous or asynchronous operation
• 3-state outputs
• 30 MHz (typical) shift-in and shift-out rates
• Readily expandable in word and bit dimensions
• Pinning arranged for easy board layout: input pins
directly opposite output pins
• Output capability: driver (8 mA)
• ICC category: LSI.
GENERAL DESCRIPTION
The 74HC/HCT7404 are high-speed Si-gate CMOS
devices specified in compliance with JEDEC standard
no.7A.
The “7404” is an expandable, First-In First-Out (FIFO)
memory organized as 64 words by 5 bits. A guaranteed
15 MHz data-rate makes it ideal for high-speed
applications. A higher data-rate can be obtained in
applications where the status flags are not used
(burst-mode).
With separate controls for shift-in (SI) and shift-out (
APPLICATIONS
• High-speed disc or tape controller
• Communications buffer.
reading and writing operations are completely
independent, allowing synchronous and asynchronous
data transfers. Additional controls include a master-reset
input (MR), an output enable input (OE) and flags. The
data-in-ready (DIR) and data-out-ready (DOR) flags
indicate the status of the device.
QUICK REFERENCE DATA
GND = 0 V; T
= 25 °C; tr = tf = 6 ns.
amb
SYMBOLPARAMETERCONDITIONS
t
PHL/tPLH
f
max
C
I
C
PD
propagation delay SO, SI to DIR and DORCL = 15 pF; VCC = 5 V1517ns
maximum clock frequency3030MHz
input capacitance3.53.5pF
power dissipation capacitance per packagenote 1475490pF
5-Bit x 64-word FIFO register; 3-state74HC/HCT7404
PINNING (SOT102)
SYMBOLPINDESCRIPTION
OE1output enable input (active
LOW)
DIR2data-in-ready output
SI3shift-in input (active HIGH)
D
to D
O
4, 5, 6, 7, 8 parallel data inputs
4
GND9ground
MR10asynchronous master-reset
input (active LOW)
Q
to Q
4
0
11, 12, 13,
data outputs
14, 15
DOR16data-out-ready output
SO17shift-out input (active LOW)
V
CC
18positive supply voltage
PINNING (SOT163A)
SYMBOLPINDESCRIPTION
OE1output enable input (active
LOW)
DIR2data-in-ready output
SI3shift-in input (active HIGH)
n.c.4not connected
D
to D
0
5, 6, 7, 8, 9 parallel data inputs
4
GND10ground
MR11asynchronous master-reset
input (active LOW)
Q
to Q
4
0
12, 13, 14,
data outputs
15, 16
n.c.17not connected
DOR18data-out ready output
n.c.19not connected
V
CC
20positive supply voltage
handbook, halfpage
OE
DIR
D
D
D
D
D
GND
1
2
SI
3
4
0
5
1
2
3
4
7404
6
7
8
9
MGA670
V
18
CC
17
SO
DOR
16
Q
15
0
Q
14
1
Q
13
2
Q
12
3
Q
11
4
10
MR
Fig.1 Pin configuration (SOT102).
handbook, halfpage
OE
DIR
n.c.
D
D
D
D
D
GND
1
2
3
SI
4
5
0
1
2
3
4
7404
6
7
8
9
10
MGA671
V
20
CC
19
SO
18
DOR
n.c.
17
16
Q
0
Q
15
1
Q
14
2
Q
13
3
Q
12
4
11
MR
Fig.2 Pin configuration (SOT163).
September 19933
Philips SemiconductorsProduct specification
5-Bit x 64-word FIFO register; 3-state74HC/HCT7404
D
D
D
D
D
SI
SO
0
1
2
3
4
10 (11)
1 (1)
OE
MR
Q
Q
Q
Q
Q
DOR
DIR
15 (16)
0
14 (15)
1
13 (14)
2
12 (13)
3
11 (12)
4
16 (18)
2 (2)
MGA673
handbook, halfpage
(5) 4
(6) 5
(7) 6
(8) 7
(9) 8
(3) 3
(19) 17
Pin numbers between parentheses refer to the SO package.
Fig.3 Logic symbol.
handbook, halfpage
(1) 1
(3) 3
(11) 10
(19) 17
(5) 4
(6) 5
(7) 6
(8) 7
(9) 8
Pin numbers between parentheses refer to the SO package.
EN4
1Z3
1 ( /C2)
CT = 0
5
5Z6
2D
FIFO 64 x 5
CTR
<
CT 64
CT 0
>
[IR] 3
[OR] 6
G1
G5
4
MGA675
Fig.4 IEC logic symbol.
2 (2)
16 (18)
15 (16)
14 (15)
13 (14)
12 (13)
11 (12)
handbook, full pagewidth
(5) 4
D
0
(6) 5
D
1
(7) 6
D
2
(8) 7
D
INPUT
3
D
MR
4
STAGE
1 x 5 BITS
DIR
(9) 8
(11) 10
Pin numbers between parentheses refer to the SO package.
MAIN FIFO
REGISTER
62 x 5 BITS
CONTROL LOGIC
SIDOR SO
Fig.5 Functional diagram.
September 19934
OUTPUT
STAGE
1 x 5 BITS
16 (18)2 (2)1 (1) 3 (3)
17 (19)
OE
OE
Q
15 (16)
0
14 (15)
Q
1
13 (14)
Q
2
12 (13)
Q
3
11 (12)
Q
4
MGA680
Philips SemiconductorsProduct specification
5-Bit x 64-word FIFO register; 3-state74HC/HCT7404
DOR
ull pagewidth
SO
FP
(1)
R
SQ
R
61 x
FB
(1)
R
(2)
FF64
R
RQ
to
FF3
FF63
R
RQ
SQ
SQ
SQ
OE
Q0Q
CLCL
CLCL
1
3-STATE
5
5
OUTPUT
LATCHES
LATCHES
Q3Q
BUFFER
4
MSB117
position 64
position 3 to 63
Fig.6 Logic diagram.
(2)
FF2
RQ
SQ
R
(2)
FF1
SQ
RQ
R
FS
MR
(1)
SI
SQ
R
September 19935
DIR
5
CLCL
CLCL
D0D1D3D
LATCHES
5
LATCHES
4
position 2
position 1
LOW on R input of FF1 to FF64 will set Q output to LOW independent of state on S input.
(See control flip-flops)
LOW on S input of flip-flops FS, FB and FP will set Q output to HIGH independent of state on R input.
Philips SemiconductorsProduct specification
5-Bit x 64-word FIFO register; 3-state74HC/HCT7404
FUNCTIONAL DESCRIPTION
The DIR flag indicates the input stage
status, either empty and ready to
receive data (DIR = HIGH) or full and
busy (DIR = LOW). When DIR and SI
are HIGH, data present at D0 to D4 is
shifted into the input stage; once
complete DIR goes LOW. When SI is
set LOW, data is automatically shifted
to the output stage or to the last
empty location. A FIFO which can
receive data is indicated by DIR set
HIGH.
A DOR flag indicates the output stage
status, either data available
(DOR = HIGH) or busy
outputs (Q
new data may be shifted into the
output stage, once complete DOR is
set LOW.
Expanded Format (see Fig.18)
The DOR and DIR signals are used to
allow the ‘7404’ to be cascaded. Both
parallel and serial expansion is
possible. Serial expansion is only
possible with typical devices.
Parallel Expansion
Parallel expansion is accomplished
by logically ANDing the DOR and DIR
signals to form a composite signal.
to Q4). When SO is LOW
0
Serial Expansion
Serial expansion is accomplished by:
• tying the data outputs of the first
device to the data inputs of the
second device
• connecting the DOR pin of the first
device to the SI pin of the second
device
• connecting the
device to the DIR pin of the second
device.
(DOR = LOW). When SO and DOR
are HIGH, data is available at the
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
Output capability: parallel outputs, bus driver; serial output, standard ICC category: MSI
SO pin of the first
.
Output capability: driver 8 mA
ICC category: LSI
Voltages are referenced to GND (ground = 0 V).
DC CHARACTERISTICS FOR 74HC
SYMBOLPARAMETER
+25−40 to +85−40 to +125
MINTYP MAXMIN MAXMINMAX
V
OH
V
OL
HIGH level
output voltage
LOW level
output voltage−−
3.98
5.48
4.32
5.81−−
0.15
0.15
T
0.26
0.26−−
°C
amb
3.84
5.34−−
0.33
0.33−−
3.70
5.20−−
0.4
0.4
UNIT
V
V
V
V
TEST CONDITION
V
CC
V
or
V
or
V
I
IH
IL
IH
IL
IO = −8 mA
IO = −10 mA
IO = 8 mA
IO = 10 mA
(V)
4.56V
4.56V
OTHER
September 19936
Philips SemiconductorsProduct specification
5-Bit x 64-word FIFO register; 3-state74HC/HCT7404
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
= tf = 6 ns; CL = 50 pF.
r
SYMBOLPARAMETER
t
PHL/tPLH
propagation
delay
MR to DIR,
DOR
t
PHL
propagation
delay
t
PHL/tPLH
MR to Q
propagation
n
delay
SI to DIR
t
PHL/tPLH
propagation
delay
SO to DOR
t
PHL/tPLH
propagation
delay
t
PHL/tPLH
DOR to Q
propagation
n
delay
t
PLH
SO to Q
propagation
n
delay/ripple
through delay
SI to DOR
t
PLH
propagation
delay/bubble-up
delay SO to
DIR
t
PZH/tPZL
3-state output
enable
t
PHZ/tPLZ
OE to Q
3-state output
n
disable
t
THL/tTLH
OE to Q
output transition
n
time
t
W
SI pulse width
HIGH or LOW357
t
W
SO pulse width
HIGH or LOW7014
°C
T
amb
+25−40 to +85−40 to +125
MINTYPMAXMINMAXMINMAX
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
6
12
69
25
20
52
19
15
66
24
19
94
34
27
11
4
3
105
38
30
2.2
0.8
0.6
2.8
1.0
0.8
44
16
13
50
18
14
14
5
4
11
4
3
22
8
6
210
42
36
160
32
27
205
41
35
290
58
49
35
7
6.0
325
65
55
7.0
1.4
1.2
9.0
1.8
1.5
150
30
26
150
30
26
60
12
10
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
45
9
8
90
18
15
265
53
45
200
40
34
255
51
43
365
73
62
45
9
8
406
81
69
8.8
1.8
1.5
11.2
2.2
1.9
190
38
32
190
38
33
75
15
13
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
55
11
9
105
21
18
315
63
54
240
48
41
310
62
53
435
87
74
55
11
9
488
98
83
10.5
2.1
1.8
13.5
2.7
2.3
225
45
38
225
45
38
90
18
15
−
−
−
−
−
−
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
µs
µs
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
TEST CONDITION
V
CC
(V)
2.0
WAVEFORMS
Fig.9
4.5
6.0
2.0
Fig.9
4.5
6.0
2.0
Fig.7
4.5
6.0
2.0
Fig.10
4.5
6.0
2.0
Fig.11
4.5
6.0
2.0
Fig.15
4.5
6.0
2.0
Fig.16
4.5
6.0
2.0
Fig.8
4.5
6.0
2.0
Fig.17
4.5
6.0
2.0
Fig.17
4.5
6.0
2.0
Fig.17
4.5
6.0
2.0
Fig.7
4.5
6.0
2.0
Fig.10
4.5
6.0
September 19937
Philips SemiconductorsProduct specification
5-Bit x 64-word FIFO register; 3-state74HC/HCT7404
T
SYMBOLPARAMETER
t
W
DIR pulse width
HIGH
t
W
DOR pulse
width HIGH
t
W
MR pulse
width LOW
t
rem
removal time
MR to SI
t
su
set-up time
Dn to SI
t
h
hold time
Dn to SI
f
max
maximum clock
pulse frequency
SI, SO burst
mode
f
max
maximum clock
pulse frequency
SI, SO using
flags
f
max
maximum clock
pulse frequency
SI, SO
cascaded
°C
amb
+25−40 to +85−40 to +125
MINTYPMAXMINMAXMINMAX
10
5
4
14
7
6
120
24
20
80
16
14
−8
−4
−3
135
27
23
3.6
18
21
3.6
18
21
−
−
−
41
15
12
52
19
15
39
14
11
24
8
7
−36
−13
−10
44
16
13
9.9
30
36
9.9
30
36
7.6
23
27
130
26
22
160
32
27
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
8
4
3
12
6
5
150
30
26
100
20
17
−6
−3
−3
170
34
29
2.8
14
16
2.8
14
16
−
−
−
165
33
28
200
40
34
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
8
4
3
12
6
5
180
36
31
120
24
20
−6
−3
−3
205
41
35
2.4
12
14
2.4
12
14
−
−
−
195
39
33
240
48
41
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
TEST CONDITION
V
CC
(V)
2.0
WAVEFORMS
Fig.8
4.5
6.0
2.0
Fig.11
4.5
6.0
2.0
Fig.9
4.5
6.0
2.0
Fig.16
4.5
6.0
2.0
Fig.14
4.5
6.0
2.0
Fig.14
4.5
6.0
2.0
4.5
Fig.12 and
Fig.13
6.0
2.0
4.5
Fig.7 and
Fig.10
6.0
2.0
4.5
Fig.7 and
Fig.10
6.0
September 19938
Philips SemiconductorsProduct specification
5-Bit x 64-word FIFO register; 3-state74HC/HCT7404
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
, except that VOH and VOL are not
valid for driver output. They are replaced by the values given below.
Output capability: driver 8 mA
ICC category: LSI.
Voltages are referenced to GND (ground = 0 V).
DC CHARACTERISTICS FOR 74HCT
T
SYMBOLPARAMETER
V
OH
HIGH level
output voltage
V
OL
LOW level
output voltage
°C
amb
+25−40 to +85−40 to +125
UNIT
MINTYP MAXMIN MAXMINMAX
3.984.32−3.84−3.7−V4.5V
−0.150.26−0.33−0.40V4.5V
TEST CONDITION
V
CC
V
(V)
IH
or
V
IL
IH
or
V
IL
Note to HCT types
The value of additional quiescent supply current (∆I
) for a unit load of 1 is given in the family specifications.
CC
To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
I
IO = −8 mA
IO = 8 mA
OTHER
UNIT LOAD COEFFICIENT
INPUTUNIT LOAD COEFFICIENT
OE1
SI1.5
D
n
0.75
MR1.5
SO1.5
September 19939
Loading...
+ 19 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.