TheTTL - Al Kossow's Bitsavers

SN74S201, SN74S301
256·811 HIGH·PERFORMANCE RANDOM·ACCESS MEMORIES
recommended operating conditions
SN74S201
SN74S301
MIN NOM MAX MIN NOM MAX
Supply voltage, Vee(see Note 1) 4.75 5 5.25 4.75 5 5.25 V
High-level output voltage, VOH 5.5 V
High-level output current, 10H -10.3 mA
low-level output current, 10l 16 16 mA
Width of write pulse (write enable low), tw(wr) 65 65 ns
Address'before write pulse, tsu(ad) a. 0+
Setup time Data before end of write pulse, tsu(da) 65t 65t ns
Chip-select before end of write pulse, tsu(S) 65t 65t
Address after write pulse, th(ad) at at
Hold time Data after write pulse, thIda) at at ns
Chip-select after write pulse, thIS) at at
Operating free-air temperature, T A a 70 a 70 °e
t '" The arrow indicates the transition of the write-enable input used for reference: I for the low-to-high transition, I for the high-to-Iow transition.
NOTE 1: Voltage values are with respect to network wound terminal.
UNIT
electrical characteristics over recommended operating free-air temperature range (unless otherwise
noted)
PARAMETER
'5201 'S301
TEST CONDITIONSt
i.- MIN TVP; MAX MIN TVP;
VIH High-level input voltage 2 2
Vil low-level input voltage 0.8
VIK Input clamp voltage Vee = MIN, II = -18 mA -1.2
VOH
High-level output voltage
Vee = MIN, VIH = 2 V,
Vil = 0.8 V,
10H = MAX
Val low-level output voltage Vee = MIN, VIH = 2 V, 10l = 16 mA 0.45
Vee = MIN, VIH . = 2 V, I Vo = 2.4 V
10H High-level output current
Vil = 0.8 V I Vo = 5.5 V
Off-state output current, Vee - MAX, VIH - 2 V,
10ZH
high-level voltage applied Vil = 0.8 V, VOH = 2.4 V
10Zl
II
Off-state output current, Vee;" MAX, VIH = 2 V,
-40
low-level voltage applied Vil = 0.8 V, VOL = 0.5 V
Input current at maximum
Vee = MAX, VI = 5.5 V 1
input voltage
IIH High-level input current Vee = MAX, VI = 2.7 V 25
III low-level input current Vee = MAX, VI - 0.5 V -250
Short-circuit output
lOS
Vee = MAX -30 -100
current§
ICC Supply current Vee = MAX, See Note 2 100 140 100
tFor conditions shown as MIN or MAX use the appropriate value specified under recommended operating conditions.
*AII typical values are at Vee = 5 V, TA = 25°C.
§Duration of the short circuit should not exceed one second.
NOTE 2: ICC is measured with all chip-select inputs grounded, all other inputs at 4.5 V, and the output open.
2.4
40
UNIT
MAX
V
0.8 V
-1.2 V
V
0.45 V
40
p.A
100
p.A
p.A
1 mA
25 p.A
-250 p.A
mA
140 mA
•
TEXAS ..
INSTRUMENTS
POST OFFICE BOX 225012 • DALLAS. TEXAS 75265
5-31