74HCT1284 Datasheet, PDF (4/12 Pages) NXP Semiconductors – Parallel printer interface transceiver/buffer

Philips Semiconductors
Parallel printer interface transceiver/buffer
Product specification
74HCT1284
DC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST CONDITIONS
V_OH
V_OL
V_HYS
R_D
I_I
I_OFF
I_OZH
I_OZL
I_IH+I_OZH
I_IL+I_OZL
I_CC
High-level
output voltage
A_n
B_n or Y_n
V_CC = Min to Max; I_OH = –50µA
V_CC = 4.7V; I_OH = –4mA
V_CC = 4.7V; I_OH = –14mA
V_CC = Min to Max; I_OL = 50µA;
Low-level
A_n
V_I = V_IL or V_IH
output voltage
V_CC = 4.7V; I_OL = 4mA; V_I = V_IL or V_IH
B_n or Y_n V_CC = 4.7V; I_OL = 14mA; V_I = V_IL or V_IH
Input Hysteresis
V_CC = 5.0V
B/Y side Output
Impedance
See Figure 1
Input leakage current
(A5–A7)
V_CC = 5.5V; V_O = V_CC or GND
B/Y Side Power-off
leakage current
V_CC = 0.0V; V_O = 0 to 7V
3-State output High
current Y_n
3-State output Low
current Y_n
current ⁽A₁ – A₄, B_n)
current ⁽A₁ – A₄, B_n)
Quiescent Supply
Current
V_CC = 5.5V; V_O = V_CC; V_I = V_IL or V_IH
V_CC = 5.5V; V_O = GND; V_I = V_IL or V_IH
V_CC = 5.5V; V_I/O = V_CC
V_CC = 5.5V; V_I/O = GND
V_CC = 5.5V; I_O = 0; V_I = GND or V_CC
LIMITS
T_amb = 25°C
T_amb = 0°C to +70°C UNIT
MIN TYP MAX MIN
MAX
V_CC–0.2 V_CC
V_CC–0.2
V
4.3
4.6
3.7
V
2.6
2.9
2.4
V
0
0.2
0.2
V
0.1 0.25
0.15 0.3
0.4
0.50
0.4
0.4
V
0.4
V
V
8
15
22
8
22
Ω
±0.5 ±1.0
±5.0
µA
±1 ±10
±100
µA
1
5
20
µA
–1
–5
1
5
–1
–5
0.5 250
–20
µA
25
µA
–25
µA
400
µA
1998 Jul 10
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