
TMS55160, TMS55161, TMS55170, TMS55171
262144 BY 16-BIT MULTIPORT VIDEO RAMS
SMVS464
–
MARCH1996
35
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
–
1443
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST
SAM
PORT
’
551xx-60
MIN
2.4
’
551xx-70
MIN
2.4
UNIT
CONDITIONS
MAX
MAX
VOH
VOL
High-level output voltage
IOH =
–
1 mA
IOL = 2 mA
VCC = 5.5 V,
VI = 0 V to 5.8 V,
All other pins at 0 V to VCC
VCC = 5.5 V,
VO = 0 V to VCC, See Note 3
See Note 4
V
Low-level output voltage
0.4
0.4
V
II
Input current (leakage)
±
10
±
10
μ
A
IO
Output current (leakage)
±
10
±
10
μ
A
ICC1
ICC1A
ICC2
ICC2A
ICC3
ICC3A
Operating current
Operating current
Standby
180
165
mA
tc(SC) = MIN
All clocks = VCC
tc(SC) = MIN
See Note 4
Active
225
205
mA
Standby current
Standby current
Standby
5
5
mA
Active
70
65
mA
RAS only refresh current
RAS only refresh current
Standby
180
165
mA
tc(SC) = MIN,
See Note 4
Active
225
205
mA
ICC4
Page mode c rrent
Page-mode current
t(P)= MIN
tc(P) = MIN,
See Note 5
Standby
’
551x0
135
115
mA
’
551x1
140
140
ICC4A
Page-mode current
t(SC)= MIN
tc(SC) = MIN,
See Note 5
Active
’
551x0
175
155
mA
’
551x1
185
185
ICC5
ICC5A
ICC6
ICC6A
For conditions shown as MIN/MAX, use the appropriate value specified in the timing requirements.
Measured with outputs open
NOTES:
3. SE is disabled for SQ output leakage tests.
4. Measured with one address change while RAS = VIL; tc(rd), tc(W), tc(TRD) = MIN
5. Measured with one address change while CASx = VIH
CBR current
CBR current
See Note 4
Standby
180
165
mA
tc(SC) = MIN,
See Note 4
See Note 4
Active
225
205
mA
Data-transfer current
Data-transfer current
Standby
200
180
mA
tc(SC) = MIN
Active
250
225
mA
capacitance over recommended ranges of supply voltage and operating free-air temperature,
f = 1 MHz (see Note 6)
PARAMETER
MIN
MAX
UNIT
Ci(A)
Ci(RC)
Ci(W)
Ci(SC)
Ci(SE)
Ci(DSF)
Ci(TRG)
Co(O)
Co(QSF)
NOTE 6: VCC = 5 V
±
0.5 V, and the bias on pins under test is 0 V.
Input capacitance, address inputs
6
pF
Input capacitance, address strobe inputs
7
pF
Input capacitance, write enable input
7
pF
Input capacitance, serial clock
7
pF
Input capacitance, serial enable
7
pF
Input capacitance, special function
7
pF
Input capacitance, transfer register input
7
pF
Output capacitance, SQ and DQ
7
pF
Output capacitance, QSF
9
pF