74HC243N Datasheet, PDF (2/17 Pages) NXP Semiconductors – Quad bus transceiver; 3-state

Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
3. Quick reference data
Table 1: Quick reference data
GND = 0 V; T_amb= 25 °C; t_r = t_f = 6 ns.
Symbol Parameter
Conditions
Min Typ Max Unit
t_PHL, t_PLH propagation delay An to Bn; C_L = 15 pF; V_CC = 5 V
-
6
-
ns
Bn to An
C_I
input capacitance
- 3.5 -
pF
C_I/O
input/output capacitance
- 10 -
pF
C_PD
power dissipation
V_I = GND to V_CC
[1] _-
26 -
pF
capacitance per transceiver
[1] C_PD is used to determine the dynamic power dissipation (P_D in µW).
P_D = C_PD × V_CC2 × f_i × N + ∑(C_L × V_CC2 × f_o) where:
f_i = input frequency in MHz;
f_o = output frequency in MHz;
C_L = output load capacitance in pF;
V_CC = supply voltage in V;
N = number of inputs switching;
∑(C_L × V_CC2 × f_o) = sum of outputs.
4. Ordering information
Table 2: Ordering information
Type number Package
Temperature range
74HC243N
−40 °C to +125 °C
74HC243D
−40 °C to +125 °C
74HC243DB
−40 °C to +125 °C
Name
DIP14
SO14
SSOP14
Description
plastic dual in-line package; 14 leads (300 mil)
plastic small outline package; 14 leads;
body width 3.9 mm
plastic shrink small outline package; 14 leads;
body width 5.3 mm
Version
SOT27-1
SOT108-1
SOT337-1
9397 750 13808
Product data sheet
Rev. 03 — 12 November 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
2 of 17