74HC590 Datasheet, PDF (12/21 Pages) NXP Semiconductors – 8-bit binary counter with output register; 3-state

NXP Semiconductors
74HC590
8-bit binary counter with output register; 3-state
V_I
MRC input
GND
t_W
V_M
V_OH
RCO output
V_OL
t_PLH
V_M
V_I
CPC input
GND
t_rec
V_M
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Measurement points are given in Table 8.
V_OL and V_OH are the typical output voltage levels that occur with the output load.
Fig 11. Waveforms showing the propagation delays from the master reset counter input (MRC) to output (RCO),
the MRC pulse width and recovery time
V_I
OE input
GND
output ^VCC
LOW-to-OFF
OFF-to-LOW _VOL
output ^VOH
HIGH-to-OFF
OFF-to-HIGH
GND
V_M
t_PLZ
t_PZL
t_PHZ
10 %
90 %
V_M
t_PZH
V_M
outputs
enabled
outputs
disabled
outputs
enabled
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Measurement points are given in Table 8.
V_OL and V_OH are the typical output voltage levels that occur with the output load.
Fig 12. Waveforms showing the 3-state enable and disable times
74HC590_2
Product data sheet
Rev. 02 — 28 April 2009
© NXP B.V. 2009. All rights reserved.
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