GTL2020 Datasheet, PDF (4/6 Pages) NXP Semiconductors – 32-bit GTL terminator with octal enables

Philips Semiconductors
32-bit GTL terminator with octal enables
Product specification
GTL2020/GTL2021/
GTL2022/GTL2023
DC ELECTRICAL CHARACTERISTICS
V_CC = 5 V ±10%; T_amb = –40°C to +85°C
SYMBOL
PARAMETER
TEST CONDITIONS
MIN.
LIMITS
TYP.¹
Control inputs
I_I
Switch inputs
V_CC = 5.5 V, V_I = V_CC or GND
V_CC = 5.5 V, V_I = 1.65 V, V_BIAS = 0 V
—
0.1
—
0.01
V_IK
Input clamp voltage
V_CC = 4.5 V, I_IK = –18 mA
—
–0.85
GTL2020 switch on resistance
V_CC = MIN, V_IN = 0 V, V_BIAS = 1.5 V
42
56
GTL2021 switch on resistance
r_ON
GTL2022 switch on resistance
V_CC = MIN, V_IN = 0 V, V_BIAS = 1.5 V
V_CC = MIN, V_IN = 0 V, V_BIAS = 1.5 V
64
75
80
100
GTL2023 switch on resistance
V_CC = MIN, V_IN = 0 V, V_BIAS = 1.5 V
125
150
C_IN
Input capacitance ENx pins
V_IN = 0 V
—
5.6
C_ON
Input capacitance, switch on
V_IN = 0 V
—
3
C_OFF
Input capacitance, switch off
V_IN = 0 V
—
6
I_CC
Power supply quiescent
V_BIAS = 1.5 OE = 0 V or V_CC
—
—
∆I_CC
Additional supply current per input pin²
V_CC = 4.5 V to 5.5 V; one input at V_CC –3.0 V,
other inputs at V_CC or GND
—
0.1
NOTES:
1. Typical values are shown at V_CC = 5.0 V, +25°C ambient and maximum loading.
2. This is the increase in supply current for each LVTTL input at the specified voltage level other than V_CC or GND.
MAX.
±1
±1
–1.2
70
92
120
175
—
—
—
10
0.5
UNIT
µA
µA
V
Ω
Ω
Ω
Ω
pF
pF
pF
µA
mA
AC ELECTRICAL CHARACTERISTICS
V_CC = 5 V ±10%; T_amb = –40°C to +85°C; t_r = t_f = 2.5 nS
SYMBOL
PARAMETER
WAVEFORM
t_PE
Bus enable
GTL2020
1
t_PD
Bus disable
1
t_PE
Bus enable
GTL2021
1
t_PD
Bus disable
1
t_PE
Bus enable
GTL2022
1
t_PD
Bus disable
1
t_PE
Bus enable
GTL2023
1
t_PD
Bus disable
1
TEST CONDITIONS
C_L = 20 pF, R_L = 500 Ω
C_L = 20 pF, R_L = 500 Ω
C_L = 20 pF, R_L = 500 Ω
C_L = 20 pF, R_L = 500 Ω
C_L = 20 pF, R_L = 500 Ω
C_L = 20 pF, R_L = 500 Ω
C_L = 20 pF, R_L = 500 Ω
C_L = 20 pF, R_L = 500 Ω
LIMITS
MIN. TYP. MAX.
1
–
3
1
–
3
1
–
3
1
–
3
1
–
3
1
–
4
1
–
5
1
–
5
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
AC WAVEFORMS
Input
Ax
3.0 V
1.5 V
t_PE
1.5 V
t_PD
0V
V_OH
V_{OH–0.3 V}
V_{OL+0.3 V}
V_OL
VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES
SW00566
Waveform 1.
TEST CIRCUIT
PULSE
GENERATOR
V_I
R_T
V_CC
D.U.T.
V_O
20 pF
C_L
R_L = 500Ω
Test Circuit for switching times
DEFINITIONS
R_L = Load resistor
C_L = Load capacitance includes jig and probe capacitance
R_T = Termination resistance should be equal to Z_OUT of pulse generators.
SW00565
Figure 2.
2000 Jan 14
4