
STANDARD
MICROCIRCUIT DRAWING
SIZE
A
5962-87699
DEFENSE SUPPLY CENTER COLUMBUS
COLUMBUS, OHIO 43218-3990
REVISION LEVEL
G
SHEET 12
DSCC FORM 2234
APR 97
TABLE IA. Electrical performance characteristics - Continued.
1/ For tests not listed in the referenced MIL-STD-883 (e.g. ΔICC), utilize the general test procedure under the conditions listed
herein. All inputs and outputs shall be tested, as applicable, to the tests in table IA herein.
2/ Each input/output, as applicable, shall be tested at the specified temperature for the specified limits. Output terminals not
designated shall be high level logic, low level logic, or open, except as follows:
a. VIC (pos) tests, the GND terminal can be open. TC = +25°C.
b. VIC (neg) tests, the VCC terminal shall be open. TC = +25°C.
c. All ICC and ΔICC tests, the output terminal shall be open. When performing these tests, the current meter shall be
placed in the circuit such that all current flows through the meter.
3/ RHA parts for device type 01 supplied to this drawing have been characterized through all levels M, D, P, L, and R of
irradiation. However, this device is only tested at the 'R' level. Pre and Post irradiation values are identical unless
otherwise specified in Table IA. When performing post irradiation electrical measurements for any RHA level, TA = +25°C.
RHA parts for device type 03 supplied to this drawing have been characterized through all levels M, D, P, L, R, and F of
irradiation. However, this device is only tested at the 'F' level. Pre and Post irradiation values are identical unless
otherwise specified in Table IA. When performing post irradiation electrical measurements for any RHA level, TA = +25°C.
4/ The word "All" in the device type and device class column, means limits for all device types and classes.
5/ For negative and positive voltage and current values, the sign designates the potential difference in reference to GND and
the direction of current flow, respectively; and the absolute value of the magnitude, not the sign, is relative to the minimum
and maximum limits, as applicable, listed herein.
6/ For device classes B, S, Q, and V, this test is guaranteed, if not tested, to the limits specified in table IA.
7/ RHA samples do not have to be tested at -55°C and +125°C postirradiation.
8/ When performing postirradiation electrical measurements for RHA level, TA = +25°C. Limits shown are guaranteed at
T
A = +25°C ±5°C.
9/ Transmission driving tests are performed at VCC = 5.5 V dc with a 2 ms duration maximum. This test may be performed
using VIN = VCC or GND. When VIN = VCC or GND is used, the test is guaranteed for VIN = 2.0 V or 0.8 V.
10/ Power dissipation capacitance (CPD) determines the no load dynamic power consumption, PD = (CPD + CL) (VCC x VCC)f +
(ICC x VCC) + (n x d x ΔICC x VCC). The dynamic current consumption, IS = (CPD + CL) VCCf + ICC + n x d x ΔICC. For both PD
and IS, n is the number of device inputs at TTL levels, f is the frequency of the input signal, and d is the duty cycle of the
input signal.
11/ This test may be performed either one input at a time (preferred method) or with all input pins simultaneously at
VIN = VCC - 2.1 V (alternate method). Classes B, S, Q, and V shall use the preferred method. When the test is performed
using the alternate test method, the maximum limits is equal to the number of inputs at a high TTL input level times
ΔICC maximum limits, and the preferred method and limits are guaranteed.
12/ The maximum limit for this parameter at 100 krads (Si) is 2 μA.
13/ This test is for qualification only. Ground bounce tests are performed on a non-switching (quiescent) output and are used
to measure the magnitude of induced noise caused by other simultaneously switching outputs. The test is performed on a
low noise bench test fixture with all outputs fully dc loaded (IOL maximum and IOH maximum = ±24 mA, for example) and 50
pF of load capacitance (see figure 4). The loads must be located as close as possible to the device output. Inputs are then
conditioned with 1 MHz pulse (tr = tf = 3.5 ±1.5 ns) switching simultaneously and in phase such that one output is forced
low and all others (possible) are switched. The low level ground bounce noise is measured at the quiet output using a
F.E.T. oscilloscope probe with at least 1 MΩ impedance. Measurement is taken from the peak of the largest positive pulse
with respect to the nominal low level output voltage (see figure 4). The device inputs are then conditioned such that the
output under test is at a high nominal VOH level. The high level ground bounce measurement is then measured from
nominal VOH level to the largest negative peak. This procedure is repeated such that all outputs are tested at a high and
low level with a maximum number of outputs switching.