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Semiconductor
MSM6595A-xxx
Semiconductor
MSM6595A-xxx
1-Mbit Serial Voice ROM
GENERAL DESCRIPTION
The MSM6595A is a MSM6595 short TAT process version.
The MSM6595A is a serial voice ROM with a 1,048,576-word 1-bit configuration.
The MSM6595A has a built-in internal address-generating circuit. A single, external clock input
allows continuous, serial read operations. The internal addresses are automatically incremented by
1 by read operation. 1024 words in X direction and 1024 words in Y direction can be addressed by
inputting external serial addresses. A read and playback device with predetermined messages can
easily be configured by storing voice data into the MSM6595A and by combining it with one of Oki's
recording and playback ICs and a serial register IC.
A serial register is required to drive the MSM6595A by the MSM6388 or MSM6588. (The MSM6595A
does not operate without a serial register.)
The major differences between the MSM6595A and MSM6595 are shown below.
MSM6595A DC Characteristics
Parameter
Symbol
Condition
Min
Max
Unit
V
DD
= 2.7 to 5.5 V, Ta = 40 to +85C
Current consumption (1)
I
DD
t
RDC
= 2.5 ms
--
20
mA
Current consumption (2)
I
DS
CS =
V
DD
0.2 V
Ta = 40
to +70C
10
mA
Typ
9
--
Ta = 40
to +85C
50
--
--
--
Typical values are at V
DD
= 5.0 V, Ta = 25C.
Parameter
Symbol
Condition
Min
Max
Unit
Current consumption (1)
I
DD
t
RDC
= 2.5 ms
--
15
mA
Typ
--
Current consumption (2)
I
DS
CS = V
DD
0.2 V
--
10
mA
--
V
DD
= 3.5 to 5.5 V, Ta = 40 to +85C
MSM6595 DC Characteristics
FEATURES
Configuration
: 1,048,576 words 1 bit
Serial access
: Read cycle time of 2.5 ms
Shorter-TAT processing
Power-supply voltage
: 2.7 to 5.5 V
Package options :
18-pin plastic QFJ (QFJ18-P-R290-1.27)
(Product Name : MSM6595A-xxxJS)
24-pin plastic SOP (SOP24-P-430-1.27-K)
(Product Name : MSM6595A-xxxGS-K)
18-pin plastic DIP (DIP18-P-300-2.54)
(Product name : MSM6595A-xxxRS)
30-pin plastic SSOP (SSOP30-P-56-0.65-K)
(Product name : MSM6595A-xxxGS-AK)
xxx indicates the code number
E2D0038-39-21
This version: Feb. 1999
Previous version: May. 1997
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Semiconductor
MSM6595A-xxx
BLOCK DIAGRAM
SASX
SADX
SADY
SASY
TAS
RDCK
CS
X-ADDRESS
REGISTER
Sin
CK
Y-ADDRESS
REGISTER
Sin
CK
CS CONTROL
X-ADDRESS
COUNTER
LD
Y-ADDRESS
COUNTER
LD
CK
CK
10
10
X-DECODER
Y-DECODER
Memory Cell
Matrix
131072 8
MULTIPLEXER
V
DD
GND
TEST
TESTO1
TESTO2
DOUT
10
1
6
3
MULTIPLEXER
TEST
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Semiconductor
MSM6595A-xxx
PIN CONFIGURATIONS (TOP VIEW)
NC : No connection
24-Pin Plastic SOP
NC : No connection
30-Pin Plastic SSOP
NC : No connection
18-Pin Plastic QFJ
NC : No connection
18-Pin Plastic DIP
TESTO1
NC
NC
RDCK
NC
TEST
CS
NC
SADX
SASX
16
15
14
13
12
3
4
5
6
7
2
1
18 17
8
9
10 11
SASY
SADY
GND
DOUT
TAS
V
DD
TEST
TESTO2
SADY
SASY
TEST
CS
NC
NC
NC
NC
SADX
SASX
TAS
V
DD
GND
NC
DOUT
TESTO1
NC
NC
NC
NC
NC
RDCK
TESTO2
TEST
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
SADY
SASY
TEST
CS
NC
SADX
SASX
TAS
V
DD
GND
DOUT
TESTO1
NC
NC
RDCK
NC
TESTO2
TEST
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
SADY
SASY
TEST
NC
CS
NC
NC
NC
NC
NC
NC
SADX
SASX
TAS
V
DD
GND
NC
DOUT
TESTO1
NC
NC
NC
NC
NC
NC
NC
NC
RDCK
TESTO2
TEST
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Semiconductor
MSM6595A-xxx
PIN DESCRIPTIONS
Type
Description
--
Power supply pin. Insert a bypass capacitor of 0.1 mF or more between this
pin and the GND pin.
--
Ground pin
I
(SERIAL ADDRESS) This pin inputs the starting X address of a read operation.
Addressing in units of 1024 words is possible. The 1024-word address data
can be input as 10-bit (AX0 - AX9) serial data via the SADX pin.
I
I
(SERIAL ADDRESS STROBE) This is the clock input pin which is used to store
the serial address data of the X address into the device's internal register.
(SERIAL ADDRESS STROBE) This is the clock input pin to store the serial
address data of the Y address into the device's internal register.
I
(ADDRESS TRANSFER STROBE) This is the input pin for loading the serial
address data into the internal address counter.
The X and Y addresses are stored at the falling edge of TAS.
Symbol
V
DD
GND
SADX
SADY
SASX
TAS
(SERIAL ADDRESS) This pin inputs the starting Y address of a read operation.
Addressing in units of 1024 words is possible. The 1024-word address data
can be input as 10-bit (AY0 - AY9) serial data via the SADY pin.
I
SASY
I
(READ CLOCK) This is the clock input pin for reading information out of the data
register. Internal operation starts at the falling edge of RDCK. The information
in the data register is output on the DOUT pin. The internal address counter is
automatically incremented at the falling edge of RDCK.
RDCK
O
(DATA OUT) The data output pin is always kept in a high-impedance state when
RDCK or CS is kept at "H". This pin reflects the "H" or "L" level data being read,
and the current data is held until RDCK is asserted High.
DOUT
I
(CHIP SELECT) Setting this pin to "H" disables all input and output pins. This pin
enables parallel use of multiple serial voice ROMs by connecting the data output pins.
CS
I
Pins for testing. Apply a "L" level to the TEST pin and "H" level to the TEST pin.
O
Pins for testing. Leave these pins open.
SSOP
15
30
12
1
13
14
2
18
28
5
16
27
DIP
9
18
6
1
7
8
2
13
17
4
10
16
SOP
12
24
9
1
10
11
2
15
22
4
13
21
QFJ
9
18
6
1
7
8
2
13
17
4
10
16
3
3
3
3
17
11
14
11
TEST
TESTO1
TEST
TESTO2
Pin
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Condition
Rating
Unit
Power Supply Voltage
V
DD
Ta = 25C
0.3 to +7.0
V
Input Voltage
V
IN
Ta = 25C
0.3 to V
DD
+0.3
V
Storage Temperature
T
STG
--
55 to +150
C
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Semiconductor
MSM6595A-xxx
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
DC Characteristics
Parameter
Symbol
Condition
Min.
Max.
Unit
V
DD
= 2.7 to 5.5 V, Ta = 40 to +85C
"H" Level Input Voltage
V
IH
--
0.85xV
DD
--
V
"L" Level Input Voltage
V
IL
--
--
0.15xV
DD
V
"H" Level Output Voltage
V
OH
I
OH
= 40 mA
V
DD
0.3
--
V
"L" Level Output Voltage
V
OL
I
OL
= 2 mA
--
0.45
V
"H" Level Input Current
I
IH
V
IH
= V
DD
--
10
mA
"L" Level Input Current
I
IL
V
IL
= GND
10
--
mA
Current Consumption (1)
I
DD
t
RDC
= 2.5 ms
--
20
mA
Current Consumption (2)
I
DS
CS =
V
DD
0.2 V
Ta = 40
to +70C
10
mA
Typ.
--
--
--
--
--
--
9
--
Ta = 40
to +85C
50
--
--
--
Typical values are at V
DD
= 5.0 V, Ta = 25
C.
Parameter
Symbol
Condition
Range
Unit
Power Supply Voltage
V
DD
GND=0 V
2.7 to 5.5
V
Operating Temperature
T
op
--
40 to +85
C
AC Characteristics
Parameter
Symbol
Min.
Max.
Unit
V
DD
= 2.7 to 5.5 V, Ta = 40 to +85C
CS, SAS Setup Time
t
CSS
1000
--
ns
SASX, SASY Cycle Time
t
SSC
500
--
ns
SASX, SASY Precharge Time
t
SAP
250
--
ns
SASX, SASY Pulse Width
t
SAS
250
--
ns
Address Setup Time
t
AS
100
--
ns
Address Hold Time
t
AH
100
--
ns
TAS Setup Time
t
ATS
500
--
ns
TAS, RDCK Setup Time
t
TRS
500
--
ns
TAS Pulse Width
t
TAS
250
--
ns
Read Cycle Time
t
RDC
2500
--
ns
Access Time
t
ACC
--
1500
ns
Output Turn-off Delay Time
t
OFF
0
200
ns
RDCK Precharge Time
t
RDP
1000
--
ns
RDCK Pulse Width
t
RD
1500
--
ns
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