SEMICONDUCTOR TECHNICAL DATA
3–1
REV 6
Motorola, Inc. 1995
10/95
# !# $!"
# "#! %# !
High–Performance Silicon–Gate CMOS
The MC74HC299 is identical in pinout to the LS299. The device inputs are
compatible with standard CMOS outputs; with pullup resistors, they are
compatible with LSTTL outputs.
The HC299 features a multiplexed parallel input/output data port to
achieve full 8–bit handling in a 20 pin package. Due to the large output drive
capability and the 3–state feature, this device is ideally suited for interface
with bus lines in a bus–oriented system.
Two Mode–Select inputs and two Output Enable inputs a re used to
choose the mode of operation as listed in the Function Table. Synchronous
parallel loading is accomplished by taking both Mode–Select lines, S1 and
S2, high. This places the outputs in the high–impedance state, which permits
data applied to the data port to be clocked into the register. Reading out of
the register can be accomplished when the outputs are enabled. The
active–low asynchronous Reset overrides all other inputs.
• Output Drive Capability: 15 LSTTL Loads for QA through Q
H
10 LSTTL Loads for QA′ and QH′
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2 to 6 V
• Low Input Current: 1 µA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
• Chip Complexity: 398 FETs or 99.5 Equivalent Gates
LOGIC DIAGRAM
7
13
6
14
5
15
4
16
8
17
11
18
12
9
1
19
2
3
PG/Q
G
PE/Q
E
PC/Q
C
PA/Q
A
Q
A
′
Q
H
′
PH/Q
H
PF/Q
F
PD/Q
D
PB/Q
B
SERIAL
DATA
INPUTS
SA (SHIFT RIGHT)
SH (SHIFT LEFT)
RESET
S
1
S
2
OE1
OE2
MODE
SELECT
OUTPUT
ENABLES
CLOCK
3–STATE
PARALLEL DATA PORT
(INPUTS/OUTPUTS)
SERIAL DATA
OUTPUTS
PIN 20 = V
CC
PIN 10 = GND
PIN ASSIGNMENT
PC/Q
C
PG/Q
G
OE2
OE1
S1
GND
RESET
Q
A
′
PA/Q
A
PE/QE5
4
3
2
1
10
9
8
7
6
14
15
16
17
18
19
20
11
12
13
PH/Q
H
Q
H
′
S
H
S2
V
CC
S
A
CLOCK
PB/Q
B
PD/Q
D
PF/Q
F
DW SUFFIX
SOIC PACKAGE
CASE 751D–04
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
ORDERING INFORMATION
MC74HCXXXN
MC74HCXXXDW
Plastic
SOIC
1
20
1
20
MC74HC299
MOTOROLA High–Speed CMOS Logic Data
DL129 — Rev 6
3–2
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
DC Output Current, per Pin
DC Supply Current, VCC and GND Pins
Power Dissipation in Still Air Plastic DIP†
SOIC Package†
Lead Temperature, 1 mm from Case for 10 Seconds
(Plastic DIP or SOIC Package)
_
C
*Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
†Derating — Plastic DIP: – 10 mW/_C from 65_ to 125_C
SOIC Package: – 7 mW/_C from 65_ to 125_C
For high frequency or heavy load considerations, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
RECOMMENDED OPERATING CONDITIONS
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
Operating Temperature, All Package Types
Input Rise and Fall Time VCC = 2.0 V
(Figure 1) VCC = 4.5 V
VCC = 6.0 V
ns
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Minimum High–Level Input
Voltage
V
out
= 0.1 V or VCC – 0.1 V
|I
out
| v 20 µA
Maximum Low–Level Input
Voltage
V
out
= 0.1 V or VCC – 0.1 V
|I
out
| v 20 µA
Vin = VIH or V
IL
|I
out
| v 20 µA
Vin = VIH or VIL|I
out
| v 6.0 mA (P/Q)
|I
out
| v 7.8 mA (P/Q)
Vin = VIH or VIL|I
out
| v 4.0 mA (Q′)
|I
out
| v 5.2 mA (Q′)
Vin = VIH or V
IL
|I
out
| v 20 µA
Vin = VIH or VIL|I
out
| v 6.0 mA (P/Q)
|I
out
| v 7.8 mA (P/Q)
Vin = VIH or VIL|I
out
| v 4.0 mA (Q′)
|I
out
| v 5.2 mA (Q′)
Maximum Input Leakage Current
Maximum Three–State Leakage
Current (QA thru QH)
Output in High–Impedance State
Vin = VIL or V
IH
V
out
= VCC or GND
Maximum Quiescent Supply
Current (per Package)
Vin = VCC or GND
I
out
= 0 µA
µA
NOTE: Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high–impedance circuit. For proper operation, Vin and
V
out
should be constrained to the
range GND v (Vin or V
out
) v VCC.
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.
I/O pins must be connected to a
properly terminated line or bus.
V
V
Minimum High–Level Output
OH
Voltage
Maximum Low–Level Output
OL
Voltage
V
V
MC74HC299
High–Speed CMOS Logic Data
DL129 — Rev 6
3–3 MOTOROLA
AC ELECTRICAL CHARACTERISTICS (C
L
= 50 pF, Input tr = tf = 6 ns)
Maximum Clock Frequency (50% Duty Cycle)
(Figures 1 and 5)
Maximum Propagation Delay, Clock to QA′ or QH′
(Figures 1 and 5)
Maximum Propagation Delay, Clock to QA thru Q
H
(Figures 1 and 5)
Maximum Propagation Delay, Reset to QA or Q
H
(Figures 2 and 5)
Maximum Propagation Delay, Reset to QA′ thru QH′
(Figures 2 and 5)
Maximum Propagation Delay, OE1, OE2, S1, or S2 to QA thru Q
H
(Figures 3 and 6)
Maximum Propagation Delay, OE1, OE2, S1, or S2 to QA thru Q
H
(Figures 3 and 6)
Maximum Output Transition Time, QA thru Q
H
(Figures 1 and 5)
Maximum Output Transition Time, QA′ or QH′
(Figures 1 and 5)
Maximum Input Capacitance
Maximum Three–State Output Capacitance
(Output in High–Impedance State), QA thru Q
H
pF
NOTES:
1. For propagation delays with loads other than 50 pF, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
2. Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
Typical @ 25°C, VCC = 5.0 V
*Used to determine the no–load dynamic power consumption: PD = CPD V
CC
2
f + ICC VCC. For load considerations, see Chapter 2 of the
Motorola High–Speed CMOS Data Book (DL129/D).
C
PD
Power Dissipation Capacitance (Per Package)*, Outputs Enabled
pF