E2D0040-39-22
¡ Semiconductor
MSM6597A-xxx
¡ Semiconductor
3-Mbit Serial Voice ROM
This version: Feb. 1999
MSM6597A-xxx
Previous version: May. 1997
GENERAL DESCRIPTION
The MSM6597A is a MSM6597 short TAT process version.
The MSM6597A is a serial voice ROM with a 1,048,576-word
¥
1-bit
¥
3-bank configuration.
The MSM6597A 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. Banks are switched with
CS1, CS2,
and
CS3.
A read and playback device with predetermined messages can easily be configured by storing voice
data into the MSM6597A and by combining it with one of Oki's recording and playback ICs and with
one of Oki's serial registers.
A serial register is required to drive the MSM6597A when used with the MSM6388 or MSM6588. (The
MSM6597A does not operate without a serial register.)
The major differences between the MSM6597A and MSM6597 are shown below.
MSM6597A DC Characteristics
V
DD
= 3.5 to 5.5 V, Ta = –40 to +85°C
Parameter
Current Consumption (1)
Symbol
I
DD
Condition
t
RDC
= 2.5
ms
Ta = –40
CS1
=
CS2
=
CS3
to +70°C
= V
DD
– 0.2 V
Ta = –40
to +85°C
Min.
—
—
—
Typ.
9
—
—
Max.
20
10
mA
50
Unit
mA
Current Consumption (2)
I
DS
MSM6597 DC Characteristics
V
DD
= 3.5 to 5.5 V, Ta = –40 to +85C°
Parameter
Current Consumption (1)
Current Consumption (2)
Symbol
I
DD
I
DS
Condition
t
RDC
= 2.5
ms
CS1
=
CS2
=
CS3
= V
DD
– 0.2 V
Min.
—
—
Typ.
—
—
Max.
15
10
Unit
mA
mA
Typical values are at V
DD
= 5.0 V, Ta = 25°C
For other detailes, refer to individual sections in this data sheet.
FEATURES
• Configuration
• Serial access
• Shorter-TAT processing
• Power-supply voltage
• Package options :
24-pin plastic SOP (SOP24-P-430-1.27-K)
30-pin plastic SSOP (SSOP30-P-56-0.65-K)
:
:
:
1,048,576 words
¥
1 bit
¥
3 banks
Read cycle time of 2.5
ms
5 V single supply
(Product name : MSM6597A-xxxGS-K)
(Product name : MSM6597A-xxxGS-AK)
1/9
¡ Semiconductor
MSM6597A-xxx
BLOCK DIAGRAM
SADX
X-ADDRESS
COUNTER
Sin
X-ADDRESS
REGISTER
X-DECODER
10
1
2
10
Memory Cell
Matrix
393216 x 8
V
DD
GND
TEST
TESTO1
TESTO2
SASX
SADY
CK
LD
CK
Y-DECODER
Y-ADDRESS
COUNTER
Sin
Y-ADDRESS
REGISTER
MULTIPLEXER
10
6
3
MULTIPLEXER
DOUT
SASY
TAS
RDCK
CS1
CS2
CS3
CK
LD
CK
CS CONTROLLER
PIN CONFIGURATION (TOP VIEW)
SADY 1
SASY
2
CS2
3
CS1
4
NC 5
NC 6
NC 7
NC 8
SADX 9
SASX
10
TAS
11
V
DD
12
NC : No connection
24-Pin Plastic SOP
NC : No connection
30-Pin Plastic SSOP
24
23
22
21
20
19
18
17
16
15
14
13
GND
CS3
DOUT
TESTO1
NC
NC
NC
NC
NC
RDCK
TESTO2
TEST
SADY
SASY
CS2
NC
CS1
NC
NC
NC
NC
NC
NC
SADX
SASX
TAS
V
DD
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
GND
CS3
DOUT
TESTO1
NC
NC
NC
NC
NC
NC
NC
NC
RDCK
TESTO2
TEST
2/9
¡ Semiconductor
MSM6597A-xxx
PIN DESCRIPTIONS
Pin
SOP SSOP
Symbol Type
Description
Power supply pin. Insert a bypass capacitor of 0.1
mF
or more between this pin and the
GND pin.
Ground pin
(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.
(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.
(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 which is used to store the
serial address data of the Y address into the device's internal register.
(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.
(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 by 1 at the falling edge of
RDCK.
(DATA OUT) The data output pin is always kept in a high-impedance state when
CS1,
CS2,
and
CS3
are all kept "H" or when
RDCK
is kept "H". This pin reflects the "H" or "L"
level data being read, and the current data is hold until
RDCH
is asserted High.
(CHIP SELECT) When either
CS1, CS2,
or
CS3
is "L", bank 1, bank 2, or bank 3 is
selected, respectively. Setting all three signals "H" disables all input and output
pins. These pins enable parallel use of multiple serial voice ROMs by connecting the
data output pins.
Pin for testing. Apply "L" level.
Pins for testing. Leave these pins open.
12
24
9
15
30
12
V
DD
GND
SADX
—
—
I
1
1
SADY
I
10
2
13
2
SASX
SASY
I
I
11
14
TAS
I
15
18
RDCK
I
22
28
DOUT
O
4
3
23
13
21
14
5
3
29
16
27
17
CS1
CS2
CS3
TEST
TESTO1
TESTO2
I
O
I
ABSOLUTE MAXIMUM RATINGS
Parameter
Power Supply Voltage
Input Voltage
Storage Temperature
Symbol
V
DD
V
IN
T
STG
Condition
Ta = 25°C
Ta = 25°C
—
Rating
–0.3 to +7.0
–0.3 to V
DD
+0.3
–55 to +150
Unit
V
V
°C
3/9
¡ Semiconductor
MSM6597A-xxx
RECOMMENDED OPERATING CONDITIONS
Parameter
Power Supply Voltage
Operating Temperature
Symbol
V
DD
T
op
Condition
GND=0V
—
Range
3.5 to 5.5
–40 to +85
Unit
V
°C
ELECTRICAL CHARACTERISTICS
DC Characteristics
V
DD
= 3.5 to 5.5 V, Ta = –40 to +85°C
Parameter
"H" Level Input Voltage
"L" Level Input Voltage
"H" Level Output Voltage
"L" Level Output Voltage
"H" Level Input Current
"L" Level Input Current
Current Consumption (1)
Symbol
V
IH
V
IL
V
OH
V
OL
I
IH
I
IL
I
DD
Condition
—
—
I
OH
= –40
mA
I
OL
= 2 mA
V
IH
= V
DD
V
IL
= GND
t
RDC
= 2.5
ms
CS1
=
CS2
=
CS3
= V
DD
– 0.2 V
Ta = –40
to +70°C
Ta = –40
to +85°C
Min.
0.8xV
DD
—
V
DD
–0.3
—
—
–10
—
—
—
Typ.
—
—
—
—
—
—
9
—
—
Max.
—
0.8
—
0.45
10
—
20
10
mA
50
Unit
V
V
V
V
mA
mA
mA
Current Consumption (2)
I
DS
Typical values are at V
DD
= 5.0 V, Ta = 25°C
AC Characteristics
V
DD
= 3.5 to 5.5 V, Ta = –40 to +85°C
Parameter
CS, SAS
Setup Time
SASX, SASY
Cycle Time
SASX, SASY
Precharge Time
SASX, SASY
Pulse Width
Address Setup Time
Address Hold Time
TAS
Setup Time
TAS, RDCK
Setup Time
TAS
Pulse Width
Read Cycle Time
Access Time
Output Turn-off Delay Time
RDCK
Precharge Time
RDCK
Pulse Width
Symbol
t
CSS
t
SSC
t
SAP
t
SAS
t
AS
t
AH
t
ATS
t
TRS
t
TAS
t
RDC
t
ACC
t
OFF
t
RDP
t
RD
Min.
1000
500
250
250
100
100
500
500
250
2500
—
0
1000
1500
Max.
—
—
—
—
—
—
—
—
—
—
1500
200
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
4/9
Serial Address Input Timing
TIMING DIAGRAMS
¡ Semiconductor
CS1
(I)
CS2
(I)
,
,,,
,,
CS3
(I)
SADX (I)
AX0
AX1
AX2
AX3
t
AH
t
AS
SASX
(I)
t
SAS
t
SAP
t
CSS
t
SSC
SADY (I)
AY0
t
AH
AY1
AY2
AY3
t
AS
SASY
(I)
t
SAS
t
SAP
t
CSS
t
SSC
TAS
(I)
,
,
,,
AX9
t
ATS
AY9
t
ATS
AX4
AX5
AX6
AX7
AX8
AY4
AY5
AY6
AY7
AY8
MSM6597A-xxx
t
TAS
5/9
