DSM2190F4 STMicroelectronics, DSM2190F4 Datasheet - Page 5

• Manufacturer Part Number: DSM2190F4
• Description: DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-2191 DSPs (3.3V Supply)
• Manufacturer: STMicroelectronics

The two-chip combination of a DSP and a DSM
device is ideal for systems which have limitations
on size, EMI levels, and power consumption. DSM
memory and logic are “zero-power”, meaning they
automatically go to standby between memory ac-
cesses or logic input changes, producing low ac-
tive and standby current consumption, which is
ideal for battery powered products.
Table 1. DSM2190F4V DSP Memory System Devices
Table 2. Compatible Analog Devices DSP
Figure 3. PLCC Connections
DSM2190F4VV-
15T6
DSM2190F4VV-
15K6
ADSP-2191M
Part Number
GND
V CC
PD2
PD1
PD0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
17
8
9
10
11
12
13
14
15
16
18
19
20
256KBytes =
256KBytes =
Main Flash
8 sectors x
8 sectors x
DSP Part Number
Memory
32KByte
32KByte
Secondary
32KBytes =
32KBytes =
4 sectors x
4 sectors x
Memory
46
45
44
43
42
41
40
39
38
37
36
34
8KByte
8KByte
35
Flash
AD15
AD14
AD13
AD12
AD11
AD10
AD9
AD8
V CC
AD7
AD6
AD4
AD5
AI02857
macro
macro
-cells
-cells
PLD
16
16
A programmable security bit in the DSM protects
its contents from unauthorized viewing and copy-
ing. When set, the security bit will block access of
programming devices (JTAG or others) to the
DSM Flash memories and PLD configuration. The
only way to defeat the security bit is to erase the
entire DSM device, after which the device is blank
and may be used again. The DSP will always have
access to Flash memory contents through the 8-bit
data port even while the security bit is set.
Figure 4. PQFP Connections
Ports
Up to
Up to
I/O
16
16
PD2
PD1
PD0
PC7
PC6
PC5
PC4
V
GND
PC3
PC2
PC1
PC0
CC
Operating Voltage, V
1
2
3
4
5
6
7
8
9
10
11
12
13
V
3.3V ±10%
3.3V ±10%
CC
and I/O
2.5V
150 ns
150 ns
Speed
Mem
CC
Package
52-pin
PQFP
52-pin
PLCC
I/O Capability
DSM2190F4
2.5 - 3.6V
39 AD15
38 AD14
37 AD13
36 AD12
35 AD11
34 AD10
33 AD9
32 AD8
31 V
30 AD7
29 AD6
28 AD5
27 AD4
Operating
–40
–40
CC
+85
+85
Temp
o
o
AI02858
C to
C to
o
o
5/61
C
C