74HC40105 Datasheet, PDF (9/25 Pages) NXP Semiconductors – 4-bit x 16-word FIFO register

Philips Semiconductors
4-bit x 16-word FIFO register
Product specification
74HC/HCT40105
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I_CC category: MSI
Note to HCT types
The value of additional quiescent supply current (∆I_CC) for a unit load of 1 is given in the family specifications.
To determine ∆I_CC per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
UNIT LOAD COEFFICIENT
OE
0.75
SI
0.40
D_n
0.30
MR
1.50
SO
0.40
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t_f = t_f = 6 ns; C_L = 50 pF
T_amb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
74HCT
+25
−40 to +85 −40 to +125 ^{UNIT VCC WAVEFORMS}
(V)
min. typ. max. min. max. min. max.
t_PHL/ t_PLH propagation delay
MR to DIR, DOR
18 35
44
53 ns 4.5 Fig.8
t_PHL
propagation delay
SI to DIR
21 42
53
63 ns 4.5 Fig.6
t_PHL
propagation delay
SO to DOR
20 42
53
63 ns 4.5 Fig.9
t_PHL/ t_PLH
t_PLH
propagation delay
SO to Q_n
propagation delay/
ripple through delay
SI to DOR
40 80
100
120 ns 4.5 Fig.14
188 400
500
600 ns 4.5 Fig.10
t_PLH
propagation delay/
bubble-up delay
SO to DIR
244 500
625
750 ns 4.5 Fig.7
t_PZH/ t_PZL 3-state output enable time
18 35
44
53 ns 4.5 Fig.16
OE to Q_n
t_PHZ/ t_PLZ 3-state output disable
time
15 30
38
45 ns 4.5 Fig.16
OE to Q_n
t_THL/ t_TLH output transition time
7 15
19
22 ns 4.5 Fig.14
1998 Jan 23
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