diff --git a/esphome/components/pca9554/__init__.py b/esphome/components/pca9554/__init__.py
index 8572486823..626b08a378 100644
--- a/esphome/components/pca9554/__init__.py
+++ b/esphome/components/pca9554/__init__.py
@@ -12,6 +12,7 @@ from esphome.const import (
 )
 
 CODEOWNERS = ["@hwstar", "@clydebarrow", "@bdraco"]
+AUTO_LOAD = ["gpio_expander"]
 DEPENDENCIES = ["i2c"]
 MULTI_CONF = True
 CONF_PIN_COUNT = "pin_count"
diff --git a/esphome/components/pca9554/pca9554.cpp b/esphome/components/pca9554/pca9554.cpp
index 74be09a748..b0a12b6c45 100644
--- a/esphome/components/pca9554/pca9554.cpp
+++ b/esphome/components/pca9554/pca9554.cpp
@@ -38,8 +38,8 @@ void PCA9554Component::setup() {
 
 void PCA9554Component::loop() {
   // Invalidate the cache at the start of each loop.
-  // The actual read will happen on demand in digital_read()
-  this->cache_valid_ = false;
+  // The actual read will happen on demand when digital_read() is called
+  this->reset_pin_cache_();
 }
 
 void PCA9554Component::dump_config() {
@@ -53,15 +53,17 @@ void PCA9554Component::dump_config() {
   }
 }
 
-bool PCA9554Component::digital_read(uint8_t pin) {
-  // Read the inputs once per loop on demand and cache the result
-  if (!this->cache_valid_ && this->read_inputs_()) {
-    this->cache_valid_ = true;
-  }
+bool PCA9554Component::digital_read_hw(uint16_t pin) {
+  // Read all pins from hardware into input_mask_
+  return this->read_inputs_();  // Return true if I2C read succeeded, false on error
+}
+
+bool PCA9554Component::digital_read_cache(uint16_t pin) {
+  // Return the cached pin state from input_mask_
   return this->input_mask_ & (1 << pin);
 }
 
-void PCA9554Component::digital_write(uint8_t pin, bool value) {
+void PCA9554Component::digital_write_hw(uint16_t pin, bool value) {
   if (value) {
     this->output_mask_ |= (1 << pin);
   } else {
diff --git a/esphome/components/pca9554/pca9554.h b/esphome/components/pca9554/pca9554.h
index 3fc4737a4f..dd5154f0a1 100644
--- a/esphome/components/pca9554/pca9554.h
+++ b/esphome/components/pca9554/pca9554.h
@@ -3,22 +3,21 @@
 #include "esphome/core/component.h"
 #include "esphome/core/hal.h"
 #include "esphome/components/i2c/i2c.h"
+#include "esphome/components/gpio_expander/cached_gpio.h"
 
 namespace esphome {
 namespace pca9554 {
 
-class PCA9554Component : public Component, public i2c::I2CDevice {
+class PCA9554Component : public Component,
+                         public i2c::I2CDevice,
+                         public gpio_expander::CachedGpioExpander<uint16_t, 16> {
  public:
   PCA9554Component() = default;
 
   /// Check i2c availability and setup masks
   void setup() override;
-  /// Poll for input changes periodically
+  /// Invalidate cache at start of each loop
   void loop() override;
-  /// Helper function to read the value of a pin.
-  bool digital_read(uint8_t pin);
-  /// Helper function to write the value of a pin.
-  void digital_write(uint8_t pin, bool value);
   /// Helper function to set the pin mode of a pin.
   void pin_mode(uint8_t pin, gpio::Flags flags);
 
@@ -32,9 +31,13 @@ class PCA9554Component : public Component, public i2c::I2CDevice {
 
  protected:
   bool read_inputs_();
-
   bool write_register_(uint8_t reg, uint16_t value);
 
+  // Virtual methods from CachedGpioExpander
+  bool digital_read_hw(uint16_t pin) override;
+  bool digital_read_cache(uint16_t pin) override;
+  void digital_write_hw(uint16_t pin, bool value) override;
+
   /// number of bits the expander has
   size_t pin_count_{8};
   /// width of registers
@@ -45,8 +48,6 @@ class PCA9554Component : public Component, public i2c::I2CDevice {
   uint16_t output_mask_{0x00};
   /// The state of the actual input pin states - 1 means HIGH, 0 means LOW
   uint16_t input_mask_{0x00};
-  /// Cache validity flag - true if we've read inputs this loop cycle
-  bool cache_valid_{false};
   /// Storage for last I2C error seen
   esphome::i2c::ErrorCode last_error_;
 };