The Motorola MCM69Q618 is a 1 Megabit static random access memory , organized
as 64K words of 18 bits. It features separate data input and data output buffers and
incorporates input and output registers on board with high speed SRAM.
The MCM69Q618 allows the user to perform transparent write and data pass
through. Two data bus ports are provided – a data input (D) and a data output (Q) port.
The synchronous design allows for precise cycle control with the use of an external
single clock (K). Address port, data input (D0 – D17), data output (Q0 – Q17), write enable (W
rising edge of clock (K).
writes can be intermixed. Thus, one can perform a read, a write, or a combination read/
write during any one cycle. For a combination read/write, the contents of the array are
read before the new data is written.
the contents of the array or the data presented to the input port D. For read/write or a
read cycle with G
is asserted, the Q port will instead output the data presented at the D input port.
• Single 3.3 V ± 5% Power Supply
• Fast Access Times: 6/8/10 ns Max
• Sustained Throughput of 1.49 Gigabits/Second
• Single Clock Operation
• Address, Data Input, E1
• 83 MHz Maximum Clock Cycle Time
• Self Timed Write
• Separate Data Input and Data Output Pins
• Pass–Through Feature
• Asynchronous Output Enable (G
• L VTTL Compatible I/O
• No Dead Cycles Required for Reads after Writes or for Writes after Reads
• 100 Pin TQFP Package
• Simultaneous Reads and Writes
Suggested Applications
), chip enables (E1, E2), and pass–through enable (PT) are registered on the
Any given cycle operates on only one address. However, for any cycle, reads and
By using the pass–through function, the output port Q can be made to reflect either
low, the Q port will output the contents of the array. However, if PT
, E2, PT, W, and Data Output Registers on Chip
)
— A TM— Ethernet Switches— Routers
— Cell/Frame Buffers — SNA Switches— Shared Memory
90E1InputSynchronous Chip Enable: Active low for depth expansion.
91E2InputSynchronous Chip Enable: Active high for depth expansion.
92GInputAsynchronous Output Enable Input:
96KInputClock: This signal registers the address, data in, and all control signals
86PTInputPass–through enable: Synchronous.
4, 6, 10, 12, 15, 17, 21, 23, 27, 53, 57,
59, 63, 65, 68, 70, 74, 76
88WInputSynchronous Write.
1, 7, 13, 19, 25, 41, 54, 60, 66, 72, 78, 95V
2, 8, 14, 20, 26, 55, 61, 67, 73, 79, 94V
29, 31, 33, 35, 37, 39, 43, 45, 47, 49, 51,
80, 82, 84, 87, 89, 93, 97, 99
A0 – A15InputSynchronous Address Inputs: These inputs are registered and must
D0 – D17InputSynchronous Data Input.
Q0 – Q17Output Synchronous Data Output.
DD
SS
NC—No Connection: There is no connection to the chip.
Supply + 3.3 V Power Supply.
Supply Ground.
meet setup and hold times.
Low — enables output buffers (Qx pins).
High — Qx pins are high impedance.
except G
.
TRUTH TABLE
Input at tn ClockResult from tn + 1 ClockNotes
Operation
Write and Pass–ThroughLHLLD written to AD data appears1
Write/ReadLHLHD written to AQ out from A2
Pass–ThroughLHHLD dataD data appears3
ReadLHHHDon’t CareQ out from A4
DeselectedXLXXDon’t CareQ is high–Z5
DeselectedHXXXDon’t CareQ is high–Z6
NOTES:
1. W rite D to array and output D at Q.
2. Output contents of array to Q then write D to array.
3. Output D at Q. Do not write.
4. Output contents of array to Q. Do not write.
5. No operation.
6. No operation.
E1E2WPTData Input DData Output Q
K
ADDRESS & CONTROL
t
n
VALID
tn +
1
MCM69Q618
4
DATA INPUT D
DATA OUTPUT Q
PIPELINED READ ACCESS
VALID
PASS–THROUGH
VALID
MOTOROLA FAST SRAM
Page 5
ABSOLUTE MAXIMUM RATINGS (See Note)
RatingSymbolValueUnit
Power Supply VoltageV
Voltage Relative to VSS for Any Pin
Except V
Output CurrentI
Power DissipationP
Temperature Under BiasT
Operating TemperatureT
Storage Temperature — PlasticT
NOTE: Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are
DD
exceeded. Functional operation should be restricted to RECOMMENDED OPERATING CONDITIONS. Exposure to higher than recommended voltages for
extended periods of time could affect device reliability.
DD
Vin, V
out
bias
stg
out
D
A
– 0.5 to + 4.6V
– 0.5 to VDD + 0.5V
± 20mA
TBDW
– 10 to + 85°C
0 to + 70°C
– 55 to + 125°C
This is a synchronous device. All synchronous inputs must meet specified setup and hold
times with stable logic levels for
edges of clock (K) while the device is selected.
This device contains circuitry to protect the
inputs against damage due to high static voltages or electric fields; however, it is advised
that normal precautions be taken to avoid
application of any voltage higher than maximum rated voltages to these high–impedance
circuits.
ALL
PACKAGE THERMAL CHARACTERISTICS (See Note 1)
Rating
Junction to Ambient (@ 200 lfm)Single Layer Board
Four Layer Board
Junction to Board (Bottom)R
Junction to Case (Top)R
NOTES:
1. Junction temperature is a function of on–chip power dissipation, package thermal resistance, mounting site (board) temperature, ambient
temperature, air flow, board population, and board thermal resistance.
2. Per SEMI G38–87.
3. Indicates the average thermal resistance between the die and the printed circuit board.
4. Indicates the average thermal resistance between the die and the case top surface via the cold plate method (MIL SPEC–883 Method 1012.1).
SymbolTQFPUnitNotes
R
θJA
θJB
θJC
40
25
17°C/W3
9°C/W4
°C/W2
rising
MOTOROLA FAST SRAM
MCM69Q618
5
Page 6
DC OPERA TING CONDITIONS AND CHARACTERISTICS
(VDD = 3.3 V ± 5%, TA = 0 to + 70°C, Unless Otherwise Noted)
RECOMMENDED OPERATING CONDITIONS AND SUPPLY CURRENTS
ParameterSymbolMinMaxUnit
Supply Voltage (Operating Voltage Range)V
Input High VoltageV
Input Low VoltageV
Input Leakage Current (All Inputs, Vin = 0 to VDD)I
Output Leakage Current (E = VIH, V
AC Supply Current (I
CMOS Standby Supply Current (Deselected, Clock (K)MCM69Q618–6 ns
Cycle Time ≥ t
Vin ≤ VSS + 0.2 V or ≥ VDD – 0.2 V)MCM69Q618–10 ns
Output Low Voltage (IOL = + 8.0 mA)V
Output High Voltage (IOH = – 4.0 mA)V
*VIL ≥ –1.5 V for t ≤ t
**VIH ≤ VDD + 1.0 V for t ≤ t
KHKH
= 0 mA) (VDD = max, f = f
out
, All Inputs Toggling at CMOS LevelsMCM69Q618–8 ns
/2.
KHKH
KHKH
= 0 to VDD)I
out
)MCM69Q618–6 ns
max
/2.
MCM69Q618–8 ns
MCM69Q618–10 ns
DD
IH
IL
lkg(I)
lkg(O)
I
DDA
I
SB1
OL
OH
3.1353.465V
2.0VDD + 0.5**V
– 0.5*0.8V
—± 1.0µA
—± 1.0µA
—
—
—
—
—
—
—0.4V
2.4V
TBD
TBD
TBD
TBD
TBD
TBD
DD
mA
mA
V
CAPACITANCE (f = 1.0 MHz, dV = 3.0 V, T
Address and Data Input CapacitanceC
Control Pin Input CapacitanceC
Output CapacitanceC
= 0 to 70°C, Periodically Sampled Rather Than 100% Tested)
A
ParameterSymbolMaxUnit
in
in
out
6pF
6pF
8pF
MCM69Q618
6
MOTOROLA FAST SRAM
Page 7
AC OPERA TING CONDITIONS AND CHARACTERISTICS
(VDD = 3.3 V ± 5%, TA = 0 to + 70°C, Unless Otherwise Noted)
Cycle Timet
Clock Access Timet
Clock Low Pulse Widtht
Clock High Pulse Widtht
Clock High to Data Output Invalidt
Clock High to Data Output High–Zt
Output Enable to Output Validt
Output Enable to Output Activet
Output Disable to Output High–Zt
Setup Times:A0 – A15
E1, E2
D0 – D17
Hold Times:A0 – A15
E1, E2
D0 – D17
NOTES:
1. All read and write cycles are referenced from K.
2. Valid data from Clock High will be the data stored at the address or the last valid read cycle.
3. This parameter is sampled and not 100% tested.
4. This is a synchronous device. All synchronous inputs must meet the specified setup and hold times with stable logic levels for
edges of clock (K) while the device is selected.
PT
PT
KHKH
KHQV
KLKH
KHKL
KHQX
KHQZ
GLQV
GLQX
GHQZ
t
AVKH
W
t
WVKH
t
PTVKH
t
EVKH
t
DVKH
t
KHAX
W
t
KHWX
t
KHPTX
t
KHEX
t
KHDX
MinMaxMinMaxMinMax
12—15—20—ns1
—6—8—10ns2
4—6—8—ns
4—6—8—ns
0—0—0—ns
—5—6—7ns3
—6—8—10ns
0—0
—5—6—7ns3
2.5—3—3—ns4
0.5—2—2—ns4
—
0—ns3
UnitNotes
ALL
rising
MOTOROLA FAST SRAM
OUTPUT
Figure 1. AC Test Load
Z0 = 50
Ω
RL = 50
VL = 1.5 V
Ω
MCM69Q618
7
Page 8
READ CYCLE TIMING
t
KHKH
K
t
AVKH
A0 – A15
E
G
Q
E low = E1 low, E2 high. E high = E1 high or E2 low.
ABCDEFGH
t
EVKH
t
GLQX
t
KLKH
t
KHEX
t
GLQV
Q(A)Q(B)Q(C)
t
KHQZ
t
KHQV
t
KHKL
t
KHQX
Q(E)
t
GHQZ
Q(F)
MCM69Q618
8
MOTOROLA FAST SRAM
Page 9
COMBINATION READ/WRITE CYCLE TIMING
K
A0 – A15
E
G
Q
W
t
KHKH
ABC DEFGH
Q[A]Q[C]Q(D)Q(E)D(F)
t
WVKH
t
KHAX
Q[B]
t
KLKH
t
KHWX
t
KHKL
PT
t
DVKH
D
NOTES:
1. E
low = E1 low and E2 high. E high = E1 high or E2 low.
2. Q[A] = Previous contents of array at address A.
3. Q(A) = Data presented at input port.
D(B)D(D)D(E)D(F)D(G)
t
PTVKH
t
KHDX
t
KHAX
MOTOROLA FAST SRAM
MCM69Q618
9
Page 10
E CONTROLLED WRITE
K
A0 – A15
W
E
D
NOTES:
ABCDEFGH
D(B)D(D)D(E)D(F)D(G)D(A)D(C)D(H)
1. E
low = E1 low, E2 high. E high = E1 high or E2 low.
Full Part Numbers — MCM69Q618TQ6MCM69Q618TQ8MCM69Q618TQ10
MCM69Q618TQ6R MCM69Q618TQ8R MCM69Q618TQ10R
MOTOROLA FAST SRAM
Page 11
P ACKAGE DIMENSIONS
4X
A–B0.20 (0.008) H
D
8051
–D–
TQFP PACKAGE
100 PIN
CASE 983A–01
2X 30 TIPS
A–B0.20 (0.008) CD
e
e/2
–A–
–H–
–C–
SEATING
PLANE
0.05 (0.002)
81
100
S
2X 20 TIPS
A
A2
A1
D1/2
CD
S
R1
VIEW AB
50
E/2
–B–
E1
E
E1/2
31
301
BASE
METAL
B
B
–X–
X=A, B, OR D
VIEW Y
PLATING
b1
c
c1
D/2
D1
D
0.13 (0.005)D
A–B0.20 (0.008)
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DATUM PLANE –H– IS LOCATED AT BOTTOM OF
LEAD AND IS COINCIDENT WITH THE LEAD
WHERE THE LEAD EXITS THE PLASTIC BODY AT
THE BOTTOM OF THE PARTING LINE.
4. DATUMS –A–, –B– AND –D– TO BE DETERMINED
AT DATUM PLANE –H–.
5. DIMENSIONS D AND E TO BE DETERMINED AT
SEATING PLANE –C–.
6. DIMENSIONS D1 AND E1 DO NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE PROTRUSION IS 0.25
(0.010) PER SIDE. DIMENSIONS D1 AND B1 DO
INCLUDE MOLD MISMATCH AND ARE
DETERMINED AT DATUM PLANE –H–.
7. DIMENSION b DOES NOT INCLUDE DAMBAR
PROTRUSION. DAMBAR PROTRUSION SHALL
NOT CAUSE THE b DIMENSION TO EXCEED 0.45
(0.018).
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
How to reach us:
USA/EUROPE /Locations Not Listed: Motorola Literature Distribution;JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 141,
P.O. B o x 5405, Denver , Colorado, 80217. 1-303-675-2140 or 1-800-441-2447 4-32-1 Nishi-Gotanda, Shagawa-ku, T okyo, Japan. 03-5487-8488
Mfax: RMFAX0@email.sps.mot.com – TOUCHTONE 1-602-244-6609ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B T ai Ping Industrial Park,
Motorola Fax Back System– US & Canada ONLY 1-800-774-1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298
– http://sps.motorola.com/mfax/
HOME PAGE: http://motorola.com/sps/CUSTOMER FOCUS CENTER: 1-800-521-6274
Mfax is a trademark of Motorola, Inc.
MCM69Q61812
◊
MOTOROLA FASTSRAM
MCM69Q618/D
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